5,872 results match your criteria Acta tropica[Journal]


Detection of mixed Leishmania infections in dogs from an endemic area in southeastern Brazil.

Acta Trop 2019 Feb 14. Epub 2019 Feb 14.

Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Brazil. Electronic address:

In Brazil, the visceral leishmaniasis (VL) is caused by Leishmania infantum, while the tegumentary leishmaniasis (TL) etiological agents are mainly Leishmania braziliensis and Leishmania amazonensis. The canine visceral leishmaniasis (CVL) diagnosis is an important step of the VL control program in Brazil, which involves the elimination of infected dogs, the main urban VL reservoirs. The current serology-based diagnostic tests have shown cross-reactivity between these three species, whereas molecular diagnosis allows high sensitivity and specie identification. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.016DOI Listing
February 2019

Evolutionary and Biogeographic History of the Black Fly Simulium wayani (Diptera: Simuliidae) on the Island of Timor.

Acta Trop 2019 Feb 14. Epub 2019 Feb 14.

Faculty of Mathematics and Natural Science, University of Mataram, Mataram, 83125, Indonesia. Electronic address:

A recently described species of black fly, Simulium wayani Takaoka and Chen, from the island of Timor was chromosomally mapped to provide insights into its evolutionary and biogeographic history. The morphologically based species status of S. wayani is supported by a suite of fixed chromosomal rearrangements and unique sex chromosomes derived primarily from a large pool of polymorphisms in the S. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.017DOI Listing
February 2019

HTLV prevalence is no longer following the decreasing HIV prevalence - 20 years of retroviral surveillance in Guinea-Bissau, West Africa.

Acta Trop 2019 Feb 13. Epub 2019 Feb 13.

Bandim Health Project, Indepth Network, Bissau, Guinea-Bissau; Department of Clinical Immunology, Aarhus University Hospital, Denmark.

Background: The HIV-2 and HTLV-1 prevalences in Bissau have followed similar trends in surveys from 1996 and 2006 with HTLV-1 prevalences of 3.6% and 2.3%, respectively. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.015DOI Listing
February 2019

First report of family clusters of Chagas disease seropositive blood donors in Mexico City and their epidemiological relevance.

Acta Trop 2019 Feb 13. Epub 2019 Feb 13.

Hospital de Infectología, Centro Médico "La Raza", Instituto Mexicano del Seguro Social, Mexico.

Background: Chagas disease is an important health problem in Latin America. Relatives of T. cruzi seropositive donors could also test positive in serological assays. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.014DOI Listing
February 2019

Morphological Study of the urotergite I process in Ten Species of the Genus Triatoma (Hemiptera, Reduviidae, Triatominae).

Acta Trop 2019 Feb 12. Epub 2019 Feb 12.

Laboratory of Entomology in Public Health, Department of Epidemiology, School of Public Health, University of São Paulo, Av. Dr. Arnaldo, 715, Pinheiros, São Paulo, São Paulo, CEP 01246-904, Brazil.

The insects of subfamily Triatominae exhibit many morphological features used for taxonomic identification. In some species, however, these features are very similar. The authors have proposed by first time the description of the structure referred as urotergite I process. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.012DOI Listing
February 2019

Diagnostic performance of CellaVision DM96 for Plasmodium vivax and Plasmodium falciparum screening in peripheral blood smears.

Acta Trop 2019 Feb 12. Epub 2019 Feb 12.

Department of Laboratory Medicine, Korea University College of Medicine, Seoul, South Korea. Electronic address:

Microscopic examination of blood smears is the standard method for malaria diagnosis but is labor-intensive and requires expert staff. CellaVision DM96 (CellaVision, Lund, Sweden) is a digital hematology analyzer available for advanced morphological analysis of blood films including intracellular parasites. Here, we evaluated the CellaVision DM96 Advanced RBC Application for malaria detection in stained peripheral blood (PB) smears. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S0001706X183084
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http://dx.doi.org/10.1016/j.actatropica.2019.02.009DOI Listing
February 2019
3 Reads

FLEAS ASSOCIATED WITH SIGMODONTINE RODENTS AND MARSUPIALS FROM THE PARANAENSE FOREST IN NORTHEASTERN ARGENTINA.

Acta Trop 2019 Feb 12. Epub 2019 Feb 12.

Centro de Estudios Parasitológicos y de Vectores (CEPAVE) (CONICET CCT La Plata-UNLP), Boulevard 120 s/n e/60 y 64, 1900, La Plata, Argentina. Electronic address:

Fleas from the Paranaense Forest in northeastern Argentina are studied. Herein we provided a list of specimens identified, which includes host species and geographical distribution for each taxa, as well as some comments on the morphology, distribution and epidemiological importance when available. The following eight species and subspecies of fleas belonging to four families were identified: Ctenocephalides felis felis (Pulicidae), Craneopsylla minerva minerva (Stephanocircidae), Polygenis (Polygenis) platensis, Polygenis (Polygenis) roberti beebei, Polygenis (Neopolygenis) pradoi, Polygenis (Neopolygenis) pygaerus (Rhopalopsyllidae), Adoratopsylla (Adoratopsylla) antiquorum antiquorum, and Adoratopsylla (Tritopsylla) intermedia intermedia (Ctenophthalmidae). Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.011DOI Listing
February 2019

Parasites of Gymnodactylus darwinii Gray, 1845 (Squamata, Phyllodactylidae) from an Atlantic Rainforest fragment.

Acta Trop 2019 Feb 12. Epub 2019 Feb 12.

Programa de Pós-Graduação em Ecologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, CEP 52171-900, Recife, Pernambuco, Brazil; Programa de Pós-Graduação em Ciência Animal Tropical, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, CEP 52171-900, Recife, Pernambuco, Brazil; Laboratório de Parasitologia (LAPAR), Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, CEP 52171-900, Recife, Pernambuco, Brazil. Electronic address:

Gymnodactylus darwinii is an endemic lizard from Atlantic Rainforest. Ecological aspects of your parasitic fauna are still unknown. Therefore, the goal of the present study was to know the composition of parasitic fauna of G. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.010DOI Listing
February 2019

Insecticide resistance in Aedes albopictus Skuse from sub-Himalayan districts of West Bengal, India.

Acta Trop 2019 Feb 11;192:104-111. Epub 2019 Feb 11.

Insect Biochemistry and Molecular Biology Laboratory, Department of Zoology, University of North Bengal, Raja Rammohunpur, P.O. North Bengal University, Siliguri, 734013, District - Darjeeling, West Bengal, India. Electronic address:

Dengue is one of the most rapidly spreading infectious diseases prevalent throughout the tropical and sub-tropical regions of the world. In absence of specific medications and vaccines, the sole method of disease prevention relies on vector control mainly using insecticides. But with the advent of Insecticide resistance, worldwide vector control programs are facing failure. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S0001706X183163
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http://dx.doi.org/10.1016/j.actatropica.2019.02.007DOI Listing
February 2019
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Surveillance of Aedes aegypti indoors and outdoors using Autocidal Gravid Ovitraps in South Texas during local transmission of Zika virus, 2016 to 2018.

Acta Trop 2019 Feb 11. Epub 2019 Feb 11.

Department of Entomology, Texas A&M University, College Station, Texas, United States. Electronic address:

The yellow fever mosquito, Aedes aegypti, has facilitated the re-emergence of dengue virus (DENV) and emergence of chikungunya virus (CHIKV) and Zika virus (ZIKV) in the Americas and the Caribbean. The recent transmission of these arboviruses in the continental United States has been limited, to date, to South Florida and South Texas despite Ae. aegypti occurring over a much larger geographical region within the country. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.006DOI Listing
February 2019

Current insecticide resistance status in Anopheles sacharovi and Anopheles superpictus populations in former malaria endemic areas of Turkey.

Acta Trop 2019 Feb 8. Epub 2019 Feb 8.

Faculty of Science and Arts, Department of Biology, Adnan Menderes University, 09010, Aydın, Turkey. Electronic address:

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http://dx.doi.org/10.1016/j.actatropica.2019.02.003DOI Listing
February 2019

Multilocus fragment analysis of Cryptosporidium parvum from pre-weaned calves in Colombia.

Acta Trop 2019 Feb 7. Epub 2019 Feb 7.

Department of Animal Pathology, Faculty of Veterinary Sciences, University of Zaragoza, Miguel Servet 177, 50013, Zaragoza, Spain; Agrifood Institute of Aragon (IA2), University of Zaragoza-CITA, Miguel Servet 177, 50013, Zaragoza, Spain. Electronic address:

The intra-species genetic diversity of Cryptosporidium parvum in dairy cattle farms in the central area of Colombia was investigated using a multilocus fragment typing approach with nine variable-number tandem-repeat (VNTR) loci and the gp60 gene. Genomic DNA of 70 C. parvum isolates from pre-weaned calves in 32 farms was analysed. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.005DOI Listing
February 2019

Serological evidence of hepatitis E virus and influenza A virus infection in farmed wild boars in China.

Acta Trop 2019 Feb 6;192:87-90. Epub 2019 Feb 6.

State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, People's Republic of China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin Province 130118, People's Republic of China; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine, Yangzhou, Jiangsu Province 225009, People's Republic of China. Electronic address:

Hepatitis E virus (HEV) and influenza A virus (IAV) are two important pathogens which can infect humans and various animals causing public health problems. In this study, the seroprevalence and risk factors associated with HEV and IAV infection in farmed wild boars were investigated in China. A total of 758 serum samples were collected from farmed wild boars between 2015 and 2016, and antibodies against HEV and IAV were examined by enzyme-linked immunosorbent assay (ELISA) using commercially available kits. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.004DOI Listing
February 2019

Anaplasmataceae, Borrelia and Hepatozoon agents in ticks (Acari: Argasidae, Ixodidae) from Chile.

Acta Trop 2019 Feb 5;192:91-103. Epub 2019 Feb 5.

Department of Preventive Veterinary Medicine and Animal Health, Faculty of Veterinary Medicine and Zootechny, University of São Paulo, Brazil.

Microorganisms harbored by Chilean autochthonous ticks have been scarcely studied and current knowledge is restricted to three species of hard ticks only. The current study aimed to assess the presence of Anaplasmataceae, Borrelia and Hepatozoon agents in ticks collected directly from the environment, on reptiles, birds and mammals in twelve localities from northern, central and southern regions of the country and Antarctica. Ticks were identified by means of a morphological and molecular approach. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.002DOI Listing
February 2019

Association between Toxoplasma gondii infection and psychiatric disorders in Zhejiang, Southeastern China.

Acta Trop 2019 Feb 4;192:82-86. Epub 2019 Feb 4.

Department of Parasitology, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China. Electronic address:

Increased rates of exposure to Toxoplasma gondii have been found in patients with psychiatric disorders globally, but there is scarce information about the epidemiology of T. gondii infection in psychiatric patients in Zhejiang Province, Southeastern China. In a case-control survey, we measured IgG and IgM class antibodies against T. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.02.001DOI Listing
February 2019
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Novel high resolution melting (HRM) and snapback assays for simultaneous detection and differentiation of Plasmodium ovale spp.

Acta Trop 2019 Jan 31;192:75-81. Epub 2019 Jan 31.

Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Austria.

Plasmodium ovale spp. are two of the six species of apicomplexan parasites belonging to the genus Plasmodium commonly causing disease in humans. A recent phylogeny study has identified both Plasmodium ovale species (P. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.018DOI Listing
January 2019

Plant extracts for developing mosquito larvicides: from laboratory to the field, with insights on the modes of action.

Acta Trop 2019 Jan 31. Epub 2019 Jan 31.

Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy. Electronic address:

In the last decades, major research efforts have been done to investigate the insecticidal activity of plant-based products against mosquitoes. This is a modern and timely challenge in parasitology, aimed to reduce the frequent overuse of synthetic pesticides boosting resistance development in mosquitoes and causing serious threats to human health and environment. This review covers the huge amount of literature available on plant extracts tested as mosquito larvicides, particularly aqueous and alcoholic ones, due to their easy formulation in water without using surfactants. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.019DOI Listing
January 2019
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Geometric morphometrics approach towards discrimination of three member species of Maculatus group in Thailand.

Acta Trop 2019 Jan 30;192:66-74. Epub 2019 Jan 30.

Department of Medical Entomology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand. Electronic address:

Members of the Maculatus group are important malaria vectors in the border regions of Thailand. However, the role of each species in malaria transmission remains unclear because of their highly similar morphologies, making them difficult to be differentiated. Whereas An. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.024DOI Listing
January 2019

The increasead of neglected cutaneous leishmaniasis in Gaziantep province of Turkey after mass human migration.

Acta Trop 2019 Jan 30. Epub 2019 Jan 30.

Gaziantep University, Faculty of Medicine, Department of Dermatology, Gaziantep, Turkey.

Outbreaks of Cutaneous Leishmaniasis (CL) due to war-related factors have been reported in different areas in Turkey and Syria. CL has become the most serious of the infectious diseases which have been reported in Gaziantep in southeast Turkey, during the last three years due to the influx of Syrian refugees. The present research involves an analytical cross-sectional epidemiological study of CL cases diagnosed in the Gaziantep Leishmaniasis Diagnosis and Treatment Center. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.026DOI Listing
January 2019
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Clinical and laboratory characterizations of hepatic capillariasis.

Acta Trop 2019 Jan 30. Epub 2019 Jan 30.

Beijing Institute of Tropical Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, PR China; Beijing Key Laboratory for Research on Prevention and Treatment of Tropical Diseases, Beijing, 100050, PR China. Electronic address:

Hepatic capillariasis is a rare and neglected parasitic disease caused by infection with Capillaria hepatica in human liver. The disease is not well described and the information for the disease's clinical manifestation, laboratory findings and disease management strategy is not well reported. The limited information for this neglected infection often results in the delay of diagnosis or misdiagnosed to other diseases, therefore the real prevalence or severity of the infection may be underestimated. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.023DOI Listing
January 2019
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The diverse echinostomes from East Africa: with a focus on species that use Biomphalaria and Bulinus as intermediate hosts.

Acta Trop 2019 Jan 30. Epub 2019 Jan 30.

Department of Biology, Center for Evolutionary and Theoretical Immunology, Museum of Southwestern Biology, University of New Mexico, 1 University of New Mexico, MSC03 2020, Albuquerque, New Mexico, 87131, USA. Electronic address:

Echinostomes are a diverse group of digenetic trematodes that are globally distributed. The diversity of echinostomes in Africa remains largely unknown, particularly in analyses using molecular markers. Therefore, we were interested in the composition and host usage patterns of African echinostomes, especially those that also use schistosome transmitting snails as intermediate hosts. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.025DOI Listing
January 2019

Modeling asymptomatic infections and work-related human circulation as drivers of unstable malaria transmission in low-prevalence areas: a study in the Northern Peruvian Amazon.

Acta Trop 2019 Jan 28. Epub 2019 Jan 28.

Duke Global Health Institute and Nicholas School of Environment, 310 Trent Dr, Duke University, Durham, NC, 27708, USA. Electronic address:

Background: Despite relatively successful control campaigns, malaria remains a relevant public health problem in the Peruvian Amazon. Several studies suggest that malaria persistence in the area can be connected with a high prevalence of asymptomatic infections, which were subsequently shown to be connected with work-related exposure in areas of hyperendemic transmission. In this study, we tested the hypothesis that the infection reservoir represented by asymptomatic carriers in the northern Peruvian Amazon, combined with circular human movement to and from hyperendemic working areas, can capture the observed hypoendemic malaria transmission. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.022DOI Listing
January 2019

In vitro and in vivo leishmanicidal activity of a ruthenium nitrosyl complex against Leishmania (Viannia) braziliensis.

Acta Trop 2019 Jan 25;192:61-65. Epub 2019 Jan 25.

School of Veterinary, Postgraduate Program in Veterinary Sciences, State University of Ceará, Fortaleza, Ceará, Brazil; Department of Pathology and Legal Medicine, School of Medicine, Specialized Medical Mycology Center, Postgraduate Program in Medical Microbiology, Federal University of Ceará, Fortaleza, Ceará, Brazil.

Leishmaniasis is a parasitic disease caused by protozoa of the genus Leishmania. There are many complications presented by the current treatment, as high toxicity, high cost and parasite resistance, making the development of new therapeutic agents indispensable. The present study aims to evaluate the leishmanicidal potential of ruthenium nitrosyl complex cis-[Ru(bpy)(SO)(NO)](PF) against Leishmania (Viannia) braziliensis. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.021DOI Listing
January 2019

Simultaneous circulation of arboviruses and other congenital infections in pregnant women in Rio de Janeiro, Brazil.

Acta Trop 2019 Jan 24;192:49-54. Epub 2019 Jan 24.

Laboratório Multiusuário de Apoio à Pesquisa em Nefrologia e Ciências Médicas, Faculdade de Medicina, Universidade Federal Fluminense, Niterói, Brazil; Departamento de Patologia, Faculdade de Medicina, Universidade Federal Fluminense, Niterói, Brazil. Electronic address:

Background: Arboviruses (Zika, dengue and chikungunya) represent a major risk for pregnant women, especially because their vertical transmission can lead to neurological damage in newborns. Early diagnosis can be difficult due to similar clinical presentation with other congenital infections that are associated with congenital abnormalities.

Objectives: To investigate the circulation of arboviruses and other pathogens responsible for congenital infections, reporting clinical aspects and geographic distribution of maternal rash in a metropolitan region of Rio de Janeiro (Brazil). Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.020DOI Listing
January 2019
3 Reads

Imbalance in the glutathione system in Opisthorchis felineus infected liver promotes hepatic fibrosis.

Acta Trop 2019 Jan 23;192:41-48. Epub 2019 Jan 23.

Siberian State Medical University, 2, Moskovsky trakt, Tomsk, 634050, Russia.

Although data on oxidative stress during liver fluke infection have been previously presented, a comprehensive study of the glutathione system that plays a crucial role in scavenging of reactive oxygen species (ROS) and detoxification of primary and secondary oxidation products has not been addressed yet. In the present study, the hepatic glutathione system was investigated in a hamster model of experimental opisthorchiasis infection. It was shown that chronic oxidative stress in an Opisthorchis felineus infected liver, evidenced by abundant hydroperoxide accumulation, leads to strong imbalance in the hepatic glutathione system, namely the depletion of reduced form of glutathione (GSH), lowering of the GSH/GSSG ratio, and a decrease in the glutathione peroxidase and glyoxalase 1 activity. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.017DOI Listing
January 2019

ROP9, MIC3, and SAG2 are heparin-binding proteins in Toxoplasma gondii and involved in host cell attachment and invasion.

Acta Trop 2019 Jan 18;192:22-29. Epub 2019 Jan 18.

Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonoses, College of Veterinary Medicine, Jilin University, Changchun, China; Key Laboratory of Zoonosis, Shenyang Agricultural University, Shenyang, China. Electronic address:

Toxoplasma gondii (T. gondii) is an obligatory intracellular parasite that can infect varieties of warm-blooded animals, including humans and birds. Heparan sulfate (HS) is widely distributed on the eukaryotic cell surface of vertebrates and can inhibit T. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.001DOI Listing
January 2019
4 Reads

Potential distribution and ecological conditions of Lonomia obliqua Walker 1855 (Saturniidae: Hemileucinae) in Brazil.

Acta Trop 2019 Jan 17. Epub 2019 Jan 17.

Instituto Nacional de Medicina Tropical, Neuquen y Jujuy S/N, Puerto Iguazú, 3370, Argentina. Electronic address:

Lonomia obliqua Walker 1855 (Lepidoptera: Saturniidae) is a species of moth which larvae are responsible for the lonomism, a form of envenomation that has been occurring in Brazil since the 1980s. Despite the importance in public health, the geographical distribution and their ecological aspects are unknown. Therefore, in the present study, we present a potential geographical distribution map for L. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.016DOI Listing
January 2019
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Effects of aestivation on survival of Bithynia siamensis goniomphalos snails and the infection of Opisthorchis viverrini in the irrigation area of wet- and dry-season rice paddy.

Acta Trop 2019 Jan 16;192:55-60. Epub 2019 Jan 16.

Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen Province 40002, Thailand. Electronic address:

The snail Bithynia siamensis goniomphalos acts as the first intermediate host of the human liver fluke, Opisthorchis viverrini, a major cause of cholangiocarcinoma in Northeast Thailand. In this study, we investigated host-parasite interactions in wet- and dry-season rice paddy plantation. The snails that aestivated through 4-month-dried period after rice harvest had average mortality rate of 36. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S0001706X183087
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http://dx.doi.org/10.1016/j.actatropica.2019.01.014DOI Listing
January 2019
4 Reads

Potential of Pluronics P-123 and F-127 as nanocarriers of anti-Leishmania chemotherapy.

Acta Trop 2019 Jan 16;192:11-21. Epub 2019 Jan 16.

Department of Clinical Analysis and Biomedicine, State University of Maringá - UEM, Colombo Avenue, 5790, Code 87020-900, Maringá, Paraná, Brazil. Electronic address:

Leishmaniasis is a neglected disease and drugs approved for its treatment often lead to abandonment, failure of therapy and even death. Photodynamic therapy (PDT) has been shown to be a promising, non-invasive and selective for a target region without requiring high-cost technology. Usually, it is employed a photosensitizing agent (PS) incorporated into nanoparticles (NP). Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.008DOI Listing
January 2019
3 Reads

Increasing number of imported Plasmodium ovale wallikeri malaria in Shandong Province, China, 2015-2017.

Acta Trop 2019 Mar 16;191:248-251. Epub 2019 Jan 16.

Shandong Provincial Reference Laboratory for Malaria Diagnosis, Shandong Institute of Parasitic Diseases, Shandong Academy of Medical Sciences, World Health Organization Collaborating Centre on Vector-Borne Diseases and Food-Borne Parasitic Diseases, Jining, China. Electronic address:

Since 2012, no indigenous malaria case have been reported in Shandong Province, China, whereas the number of imported cases and the genetic diversity of Plasmodium spp. have increased. Beginning in 2015, the number of Plasmodium ovale cases were increased and the P. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.015DOI Listing
March 2019
1 Read

Phytochemical profiling, antioxidant and anticancer activities of Gastrocotyle hispida growing in Saudi Arabia.

Acta Trop 2019 Mar 16;191:243-247. Epub 2019 Jan 16.

Chemistry Department, Cape Peninsula University of Technology, P.O. Box 1906, Bellville 7535, South Africa.

The present study aimed at isolation the phytocompounds from the aerial parts of Gastrocotyle hispida and to evaluate its antioxidant and anticancer potential using in vitro assay. Gastrocotyle hispida is belonging to the family Boraginaceae used as a refreshing drink like tea. The decoction of the leaves is diuretic and is used in the treatment of rheumatism. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S0001706X183015
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http://dx.doi.org/10.1016/j.actatropica.2019.01.013DOI Listing
March 2019
7 Reads

Effect of nutritional state and dispersal on the reproductive efficiency in Triatoma infestans (Klug, 1834) (Hemiptera: Reduviidae: Triatominae) susceptible and resistant to deltamethrin.

Acta Trop 2019 Mar 14;191:228-238. Epub 2019 Jan 14.

Laboratorio de Investigación en Triatominos (LIT), Centro de Referencia de Vectores (CeReVe)-Programa Nacional de Chagas-Ministerio de Salud de la Nación, Santa María de Punilla, Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina. Electronic address:

The dispersal of insects is determinant in the colonization of new areas and the propagation of insecticide resistance. Nutritional status and reproductive characteristics determine the colonization capacity after the dispersal event. Studies about of the effects of dispersal on reproduction in triatomines are few and none in resistant insects. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.012DOI Listing
March 2019
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Meta-analysis and discussion on challenges to translate Leishmania drug resistance phenotyping into the clinic.

Acta Trop 2019 Mar 9;191:204-211. Epub 2019 Jan 9.

Laboratory of Eco-epidemiology and Parasitic Population Genetics, Pasteur Institute of Algier, Algier, Algeria. Electronic address:

Antimicrobial resistance (AMR) threatens the prevention and treatment of infections caused by a large range of microorganisms. Leishmania is not an exception and treatment failure due to drug-resistant organisms is increasingly reported. Currently, no molecular methods and marker are validated to track drug-resistant organism and antimicrobial susceptibility tests are roughly not amenable to a clinical setting. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S0001706X183154
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http://dx.doi.org/10.1016/j.actatropica.2019.01.009DOI Listing
March 2019
9 Reads

Molecular detection and characterization of Ehrlichia ruminantium from cattle in Mozambique.

Acta Trop 2019 Mar 9;191:198-203. Epub 2019 Jan 9.

Laboratório de Imunoparasitologia, Departamento de Patologia Veterinária, Faculdade de Ciências Agrárias e Veterinárias (FCAV), Universidade Estadual Paulista (Unesp), Jaboticabal, SP, Brazil. Electronic address:

Heartwater caused by Ehrlichia ruminantiumis a disease of domestic and wild ruminants and one of the most economically important tick-borne diseases in Africa. The present study aimed to investigate the occurrence and genetic diversity of E. ruminantium in blood samples from 210 cattle sampled in five districts of Maputo Province, Mozambique. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.007DOI Listing
March 2019
2 Reads

Increased risk of Toxoplasma gondii infection in cancer patients: A meta-analysis of current evidence based on case-control study.

Acta Trop 2019 Jan 11;192:30-40. Epub 2019 Jan 11.

Department of Parasitology, Medical College of Soochow University, 199 Renai Road, Suzhou, 215123, Jiangsu, China. Electronic address:

Toxoplasma gondii (T. gondii) is an intracellular protozoan parasite that often infects warm-blooded animals or causes opportunistic infections if exists a suppressed immunity. This study aims to investigate the seroprevalence of T. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.010DOI Listing
January 2019
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2.270 Impact Factor

Circulating Leptospira species identified in cattle of the Brazilian Amazon.

Acta Trop 2019 Mar 11;191:212-216. Epub 2019 Jan 11.

Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brazil. Electronic address:

The present study aimed to detect the most prevalent serogroups and circulating Leptospira species in cows from Brazilian Amazon. Samples of blood serum, urine and kidney of 208 animals were collected at a municipal slaughterhouse in the Baixo Tocantins region of Pará State, Northern Brazil. The tests used were microscopic agglutination test (MAT), bacteriological isolation, polymerase chain reaction (PCR) and DNA sequencing. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.011DOI Listing
March 2019
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Impact of sugar composition on meal distribution, longevity, and insecticide toxicity in Aedes aegypti.

Acta Trop 2019 Mar 8;191:221-227. Epub 2019 Jan 8.

Department of Pathobiological Sciences University of Wisconsin- Madison, Madison, WI, 53706, United States. Electronic address:

Toxic Sugar Baits (TSBs) are an inexpensive and field-applicable approach to deliver a variety of insecticides to sugar-seeking mosquitoes. We reasoned that carbohydrate chemistry could alter the performance and efficacy of TSBs. In this study, the uptake, distribution, and survival of female Aedes aegypti provided with twelve different aqueous sugar meals was recorded. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.005DOI Listing
March 2019
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Autochthonous cutaneous leishmaniasis in urban domestic animals (Felis catus / Canis lupus familiaris) from central-western Venezuela.

Acta Trop 2019 Mar 8;191:252-260. Epub 2019 Jan 8.

Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan.

Leishmaniasis is a zoonotic disease caused by intracellular protozoa of the Leishmania genus that are spread and transmitted by sandflies. Natural infection and clinical disease in domestic cats and dogs appear to be rare or perhaps largely under-reported in endemic areas. However, previous reports on infected domestic animals usually implicate the same Leishmania species that affect humans in tropical and subtropical areas of the world suggesting a potential role for zoonotic transmission. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.006DOI Listing
March 2019
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Human schistosomiasis in Benin: Countrywide evidence of Schistosoma haematobium predominance.

Acta Trop 2019 Mar 8;191:185-197. Epub 2019 Jan 8.

Research Triangle Institute, Washington, District of Columbia, United States.

Background: A national mapping of human schistosomiasis was conducted in Benin to provide the baseline epidemiological data required to implement the national strategy for schistosomiasis control and elimination to achieve the WHO's goal of reaching at least 75% of school-age children in endemic areas by 2020.

Methods: Parasitological surveys were conducted from 2013 to 2015, among 19,250 children aged 8-14 years randomly sampled in 385 units (schools/villages) across all districts. Urine and stool samples were examined using parasite-egg filtration for urine samples and the Kato-Katz technique for stool specimens. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S0001706X183097
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http://dx.doi.org/10.1016/j.actatropica.2019.01.004DOI Listing
March 2019
4 Reads
2.270 Impact Factor

Molecular detection, characterization of Anaplasma spp. in domestic cats from Rio de Janeiro state.

Acta Trop 2019 Mar 4;191:239-242. Epub 2019 Jan 4.

Departamento de Medicina e Cirurgia Veterinária, Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro - UFRRJ, Seropédica, RJ, Brazil. Electronic address:

Species of the genus Anaplasma, in the family Anaplasmatacae, are responsible to vector-borne diseases that affecting animals and humans. Feline anaplasmosis is poorly reported in Brazil. This study aimed at investigating the occurrence of Anaplasma spp. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S0001706X183139
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http://dx.doi.org/10.1016/j.actatropica.2019.01.003DOI Listing
March 2019
15 Reads

A new species of the Simulium (Simulium) variegatum species-group (Diptera: Simuliidae) from Thailand.

Acta Trop 2019 Mar 3;191:155-161. Epub 2019 Jan 3.

Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand. Electronic address:

A new species of black fly, Simulium (Simulium) luculentum, is described from specimens collected in Thailand, and is assigned to the Simulium variegatum species-group of the subgenus Simulium Latreille. This new species is distinguished from most members of this species group in the female by the mid femur and tibia entirely yellowish; and in the pupa by the gill with six filaments, which are somewhat inflated basally. This species represents the fifth member of the S. Read More

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http://dx.doi.org/10.1016/j.actatropica.2019.01.002DOI Listing
March 2019
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Sustainable food systems, health and infectious diseases: Concerns and opportunities.

Acta Trop 2019 Mar 31;191:172-177. Epub 2018 Dec 31.

Swiss Tropical and Public Health Institute, CH-4002 Basel, Switzerland; University of Basel, CH-4001 Basel, Switzerland.

Food systems have been identified as one of the key issues in the 2030 Agenda for Sustainable Development. Hence, food systems are embodied in the Sustainable Development Goals (SDGs) with a range of ramifications on different goals and targets. Current food systems practices are exposing the vulnerability of populations to various health issues. Read More

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http://dx.doi.org/10.1016/j.actatropica.2018.12.042DOI Listing
March 2019
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Evidence of multiple point mutations in Theileria annulata cytochrome b gene incriminated in buparvaquone treatment failure.

Acta Trop 2019 Mar 30;191:128-132. Epub 2018 Dec 30.

Laboratory of Parasitology, Faculty of Veterinary Medicine, Graduate School of Infectious Diseases, Hokkaido University, Sapporo, Japan; Department of Parasitology, Faculty of Veterinary Medicine, University of Khartoum, P.O. Box 32, Khartoum North, Sudan. Electronic address:

Drug resistance is one of the emerging and re-emerging epidemics affecting both veterinary and public health sectors. Buparvaquone provides the most satisfactory means in the treatment of bovine tropical theileriosis. However, recently there has been widespread reports of development of resistance of Theileria annulata to buparvaquone. Read More

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http://dx.doi.org/10.1016/j.actatropica.2018.12.041DOI Listing
March 2019
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2.270 Impact Factor

Orthohantavirus genotype Lechiguanas in Oligoryzomys nigripes (Rodentia: Cricetidae): New evidence of host-switching.

Acta Trop 2019 Mar 29;191:133-138. Epub 2018 Dec 29.

Laboratorio de Ecología de Enfermedades, Instituto de Ciencias Veterinarias del Litoral (ICIVET LITORAL), Universidad Nacional del Litoral - CONICET, Argentina.

To identify and predict situations of increased risk of orthohantavirus infection in humans, it is necessary to study the relationships between the virus and its rodent hosts. The present study investigated orthohantavirus infection in an assemblage of wild Sigmodontinae rodents of the Paraná Delta, Argentina, and providing new evidence of host-switching events. Rodents belonging to the species Oxymycterus rufus (n = 187), Akodon azarae (n = 82), Oligoryzomys flavescens (n = 80), Oligoryzomys nigripes (n = 47), Scapteromys aquaticus (n = 38), Deltamys kempi (n = 7) and Holochilus brasiliensis (n = 2) were captured at 4 sampling sites during 20 trapping sessions. Read More

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http://dx.doi.org/10.1016/j.actatropica.2018.12.040DOI Listing
March 2019
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Expression and purification of truncated recombinant B8/1 protein of Echinococcus granulosus for diagnosis of hydatid infection in human.

Acta Trop 2019 Mar 29;191:139-145. Epub 2018 Dec 29.

Department of Parasitology, Pasteur Institute of Iran, Tehran, Iran.

Hydatidosis is one of the most important diseases common between animals and human beings. Caused by Echinococcus granulosus tapeworm, the disease has a global epidemic. The serological diagnostic tests that are now utilized to confirm the imaging approaches have some drawbacks such as low sensitivity and cross-reaction with the serum of the patients infected with other parasites. Read More

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http://dx.doi.org/10.1016/j.actatropica.2018.12.039DOI Listing
March 2019
3 Reads

Plasmodium falciparum PFI1625c offers an opportunity to design potent anti-malarials: Biochemical characterization and testing potentials in drug discovery.

Acta Trop 2019 Mar 27;191:116-127. Epub 2018 Dec 27.

Malaria Research Group, Department of Biosciences and Bioengineering, Indian Institute of Technology-Guwahati, Guwahati, 781039, Assam, India. Electronic address:

Putative PFI1625c was cloned, over-expressed and purified to homogeneity. It is a 56.2 kDa monomeric protease which preferentially catalyzes the degradation of gelatin with a K = 30μM. Read More

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http://dx.doi.org/10.1016/j.actatropica.2018.12.033DOI Listing
March 2019
2 Reads

Morphological and molecular evidence for a new species of Lutzia (Diptera: Culicidae: Culicini) from Thailand.

Acta Trop 2019 Mar 26;191:77-86. Epub 2018 Dec 26.

Center of Insect Vector Study, Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand. Electronic address:

We found a species of LutziaTheobald (1903) (Diptera: Culicidae) in Chiang Mai Province and other provinces in northern Thailand which bears morphological and DNA sequence differences from the three species of Lutzia, subgenus Metalutzia Tanaka, previously recorded from Thailand, namely Lt. fuscana (Wiedemann), Lt. halifaxii (Theobald) and Lt. Read More

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http://dx.doi.org/10.1016/j.actatropica.2018.12.029DOI Listing
March 2019
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Community-based surveillance and control of chagas disease vectors in remote rural areas of the Argentine Chaco: A five-year follow-up.

Acta Trop 2019 Mar 26;191:108-115. Epub 2018 Dec 26.

Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Laboratory of Eco-Epidemiology, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad de Buenos Aires. Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA), Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina.

Prevention of Chagas disease vector-borne transmission mostly relies on the residual application of pyrethroid insecticide. Persistent or recurrent house infestation after insecticide spraying remains a serious challenge in remote, resource-poor rural areas where public health services face substantial constraints. Here we use generalized estimating equations and multimodel inference to model the fine-scale, time-lagged effects of a community-based vector surveillance-and-response strategy on house infestation and abundance of Triatoma infestans in four rural communities of the Argentine Chaco over a five-year period. Read More

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http://dx.doi.org/10.1016/j.actatropica.2018.12.038DOI Listing
March 2019
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Evidence of bluetongue and Epizootic Haemorrhagic disease circulation on the island of Mayotte.

Acta Trop 2019 Mar 24;191:24-28. Epub 2018 Dec 24.

ASTRE, Univ Montpellier, CIRAD, INRA, Montpellier, France; CIRAD, UMR ASTRE, Sainte Clotilde, La Réunion, France.

A cross-sectional study was conducted to explore the epidemiological situation in Mayotte regarding two orbiviruses: Bluetongue virus (BTV) and Epizootic Haemorrhagic Disease virus (EHDV). In all, 385 individual asymptomatic cattle were blood-sampled (one EDTA and one serum tube per animal) between February and June 2016. Antibody (ELISA) and genome prevalence (PCR) was assessed. Read More

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http://dx.doi.org/10.1016/j.actatropica.2018.12.037DOI Listing
March 2019
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Molecular characterization of new genotypes Enterocytozoon bieneusi in Slovakia.

Acta Trop 2019 Mar 23;191:217-220. Epub 2018 Dec 23.

Department of Biology and Genetics, University of Veterinary Medicine and Pharmacy, Komenského 73, 04181 Košice, Slovak Republic.

Enterocytozoon bieneusi is characterized as a ubiquitous intestinal parasite with a wide genetic diversity, and it is capable of infecting a diverse range of hosts all around the world. Since information about the genotype diversity of E. bieneusi in pigs, calves, sheep and goats in Slovakia is very limited, we examined three farms where we mapped the occurrence of E. Read More

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http://dx.doi.org/10.1016/j.actatropica.2018.12.031DOI Listing
March 2019
1 Read