20,259 results match your criteria Dengue Fever
Acta Trop 2018 Dec 12. Epub 2018 Dec 12.
Centro Internacional de Entrenamiento e Investigaciones Médicas CIDEIM, Carrera 125 N 19-225, Cali, Colombia; Universidad ICESI, Cali,Colombia. Electronic address:
In Colombia Aedes (Stegomyia) aegypti is the main vector of urban arboviruses such as dengue, chikungunya and Zika. This urban mosquito has a well-established capacity to develop insecticide resistance to different types of insecticides (pyrethroids, organochlorides, organophosphates), using multiple resistance mechanisms. An understanding of ongoing resistance mechanisms is critical to determining the activities of vector control programs. Read More
Acta Trop 2018 Dec 12. Epub 2018 Dec 12.
Programa de Pós-Graduação em Ciências da Saúde, Departamento de Ciências Básicas em Saúde, Faculdade de Medicina, Universidade Federal de Mato Grosso, Av. Fernando Correa da Costa, n. 2367, CCBS-I, sala 82, CEP 78060-900, Cuiabá, Mato Grosso, Brazil. Electronic address:
Arboviruses have become a major public health concern in Brazil, especially after Zika virus (ZIKV) and Chikungunya virus (CHIKV) introduction, leading to massive epidemics. We conducted an investigation of arboviruses in patients with acute febrile illness for less than five days in Mato Grosso state (MT) during the period of ZIKV and CHIKV dissemination in Brazil. To achieve that, 453 human serum samples of patients suspected of Dengue (DENV), Yellow Fever (YFV), ZIKV or CHIKV collected in health units of 31 cities of MT were subjected to RT-PCR protocols for 10 flaviviruses, 5 alphaviruses and orthobunyaviruses from Simbu serogroup, nucleotide sequencing and viral isolation. Read More
Mol Cell Proteomics 2018 Dec 14. Epub 2018 Dec 14.
Biology & Biochemistry, Syracuse University, United States of America
The yellow fever mosquito, , transmits several viruses causative of serious diseases, including dengue, Zika, and chikungunya. Some proposed efforts to control this vector involve manipulating reproduction to suppress wild populations or to replace them with disease-resistant mosquitoes. The design of such strategies requires an intimate knowledge of reproductive processes, yet our basic understanding of reproductive genetics in this vector remains largely incomplete. Read More
Cell 2018 Dec;175(7):1931-1945.e18
Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, USA; Quantitative Biosciences Institute (QBI), University of California San Francisco, San Francisco, CA, USA; The J. David Gladstone Institutes, San Francisco, CA, USA. Electronic address:
Mosquito-borne flaviviruses, including dengue virus (DENV) and Zika virus (ZIKV), are a growing public health concern. Systems-level analysis of how flaviviruses hijack cellular processes through virus-host protein-protein interactions (PPIs) provides information about their replication and pathogenic mechanisms. We used affinity purification-mass spectrometry (AP-MS) to compare flavivirus-host interactions for two viruses (DENV and ZIKV) in two hosts (human and mosquito). Read More
PLoS Negl Trop Dis 2018 Dec 14;12(12):e0006938. Epub 2018 Dec 14.
Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico.
Background: Given that dengue disease is growing and may progress to dengue hemorrhagic fever (DHF), data on economic cost and disease burden are important. However, data for Mexico are limited.
Methodology/principal Findings: Burden of dengue fever (DF) and DHF in Mexico was assessed using official databases for epidemiological information, disabilities weights from Shepard et al, the reported number of cases and deaths, and costs. Read More
J Ultrasound Med 2018 Dec 14. Epub 2018 Dec 14.
Infectious Diseases, Federal University of Triângulo Mineiro, Uberaba, Brazil.
Objectives: To evaluate whether abdominal ultrasound (US) with a gallbladder (GB) contractility study or motor function test can be used as a diagnostic tool in patients with dengue and warning signs in acute and recovery phases.
Methods: Fifty-one individuals in the acute phase of dengue presenting with warning signs (dengue group) and 49 healthy individuals without a history of dengue or hepatobiliary disease (control group) were studied with abdominal US and a GB contractility study.
Results: Statistical differences in US measurements of the liver (right lobe, P = . Read More
Parasit Vectors 2018 Dec 14;11(1):637. Epub 2018 Dec 14.
Departmento de Biología, Universidad de El Salvador, Final de Av. Mártires y Héroes del 30 Julio, San Salvador, El Salvador.
Background: Aedes aegypti is associated with dengue, yellow fever, chikungunya and Zika viruses. This vector is widespread in tropical and subtropical areas, and can also occur in temperate areas at higher latitudes. The geographical distribution of Ae. Read More
Proc Natl Acad Sci U S A 2018 Dec 13. Epub 2018 Dec 13.
Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814
Micromachines (Basel) 2018 Dec 9;9(12). Epub 2018 Dec 9.
School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
Since the beginning of the 2000s, globalization has accelerated because of the development of transportation systems that allow for human and material exchanges throughout the world. However, this globalization has brought with it the rise of various pathogenic viral agents, such as Middle East respiratory syndrome coronavirus (MERS-CoV), severe acute respiratory syndrome coronavirus (SARS-CoV), Zika virus, and Dengue virus. In particular, avian influenza virus (AIV) is highly infectious and causes economic, health, ethnical, and social problems to human beings, which has necessitated the development of an ultrasensitive and selective rapid-detection system of AIV. Read More
Int J Mol Sci 2018 Dec 7;19(12). Epub 2018 Dec 7.
Department of Biochemistry & Molecular Biology and Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan.
Autophagy is an evolutionarily conserved cellular process in which intracellular components are eliminated via lysosomal degradation to supply nutrients for organelle biogenesis and metabolic homeostasis. Flavivirus infections underlie multiple human diseases and thus exert an immense burden on public health worldwide. Mounting evidence indicates that host autophagy is subverted to modulate the life cycles of flaviviruses, such as hepatitis C virus, dengue virus, Japanese encephalitis virus, West Nile virus and Zika virus. Read More
Int J Environ Res Public Health 2018 Dec 7;15(12). Epub 2018 Dec 7.
UMR BIPAR, Animal Health Laboratory, ANSES, INRA, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, 94700 Maisons-Alfort, France.
Mosquito-borne viruses are the cause of some of the greatest burdens to human health worldwide, particularly in tropical regions where both human populations and mosquito numbers are abundant. Due to a combination of anthropogenic change, including the effects on global climate and wildlife migration there is strong evidence that temperate regions are undergoing repeated introduction of mosquito-borne viruses and the re-emergence of viruses that previously were not detected by surveillance. In Europe, the repeated introductions of West Nile and Usutu viruses have been associated with bird migration from Africa, whereas the autochthonous transmission of chikungunya and dengue viruses has been driven by a combination of invasive mosquitoes and rapid transcontinental travel by infected humans. Read More
PLoS One 2018 13;13(12):e0207878. Epub 2018 Dec 13.
Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America.
Objective: To evaluate the association of rainy season with overall dengue disease incidence and with the efficacy of the Sanofi Pasteur recombinant, live, attenuated, tetravalent vaccine (CYD-TDV) in two randomized, controlled multicenter phase III clinical trials in Asia and Latin America.
Methods: Rainy seasons were defined for each study site using climatological information from the World Meteorological Organization. The dengue attack rate in the placebo group for each study month was calculated as the number of symptomatic, virologically-confirmed dengue events in a given month divided by the number of participants at risk in the same month. Read More
J Clin Microbiol 2018 Dec 12. Epub 2018 Dec 12.
Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
There are currently five serologic assays available for detection of anti-Zika virus (ZIKV) IgM-class antibodies with United States Food and Drug Administration Emergency Use Authorization. Among these are the Chembio DDP Zika IgM system (Chembio DPP Zika ICA; Medford, NY), a rapid immunochromatographic assay (ICA), and the InBios ZIKV ™ 2.0 IgM antibody capture enzyme-linked immunosorbent assay (InBios ZIKV 2. Read More
J Clin Microbiol 2018 Dec 12. Epub 2018 Dec 12.
US Department of Health and Human Services, Public Health Services, Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado 80521
Diagnostic testing for Zika virus (ZIKV) or dengue virus (DENV) infection can be accomplished by a nucleic acid detection method; however, a negative result does not exclude infection due to the low virus titer during infection depending on the timing of sample collection. Therefore, a ZIKV- or DENV-specific serological assay is essential for the accurate diagnosis of patients and to mitigate potential severe health outcomes. A retrospective study design with dual approaches of collecting human serum samples for testing was developed. Read More
Infect Dis Poverty 2018 Nov 29;7(1):126. Epub 2018 Nov 29.
The International Research Institute for Climate and Society, The Earth Institute, Columbia University, 61 Route 9W, Lamont-Doherty, Palisades, NY, 10964, USA.
Background: During the last 30 years, the development of geographical information systems and satellites for Earth observation has made important progress in the monitoring of the weather, climate, environmental and anthropogenic factors that influence the reduction or the reemergence of vector-borne diseases. Analyses resulting from the combination of geographical information systems (GIS) and remote sensing have improved knowledge of climatic, environmental, and biodiversity factors influencing vector-borne diseases (VBDs) such as malaria, visceral leishmaniasis, dengue, Rift Valley fever, schistosomiasis, Chagas disease and leptospirosis. These knowledge and products developed using remotely sensed data helped and continue to help decision makers to better allocate limited resources in the fight against VBDs. Read More
BMC Biotechnol 2018 Dec 12;18(1):78. Epub 2018 Dec 12.
Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Centro de Biotecnologia, Av. Prof. Lineu Prestes, 2242, São Paulo, 05508-000, Brazil.
Background: Proteins in inclusion bodies (IBs) present native-like secondary structures. However, chaotropic agents at denaturing concentrations, which are widely used for IB solubilization and subsequent refolding, unfold these secondary structures. Removal of the chaotropes frequently causes reaggregation and poor recovery of bioactive proteins. Read More
BMC Infect Dis 2018 Dec 12;18(1):644. Epub 2018 Dec 12.
Swiss Tropical and Public Health Institute, Basel, Switzerland.
Background: Although the incidence of dengue across Africa is high, severe dengue is reported infrequently. We describe the clinical features and the outcome of dengue according to raceduring an outbreak in Dar es Salaam, Tanzania that occurred in both native and expatriate populations.
Methods: Adults with confirmed dengue (NS1 and/or IgM on rapid diagnostic test and/or PCR positive) were included between December 2013 and July 2014 in outpatient clinics. Read More
Mem Inst Oswaldo Cruz 2018 Dec 10;114:e180450. Epub 2018 Dec 10.
Universidade Federal do Estado do Rio de Janeiro/Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.
BACKGROUND Amazon, the largest tropical forest of the world, has suffered from dengue outbreaks since 1998. Cerebrospinal fluid (CSF) of patients, from Amazonas state, suspected of central nervous system (CNS) viral infection was studied using molecular and immunological methods. OBJECTIVE To evaluate the importance of CSF investigation in patients with acute dengue virus (DENV) infection of CNS. Read More
Rev Inst Med Trop Sao Paulo 2018 Dec 10;60:e62err. Epub 2018 Dec 10.
[This corrects the article doi: 10.1590/S1678-9946201860062]. Read More
Front Genet 2018 27;9:575. Epub 2018 Nov 27.
West African Centre for Cell Biology of Infectious Pathogens, University of Ghana, Accra, Ghana.
Genomics and bioinformatics are increasingly contributing to our understanding of infectious diseases caused by bacterial pathogens such as and parasites such as . This ranges from investigations of disease outbreaks and pathogenesis, host and pathogen genomic variation, and host immune evasion mechanisms to identification of potential diagnostic markers and vaccine targets. High throughput genomics data generated from pathogens and animal models can be combined with host genomics and patients' health records to give advice on treatment options as well as potential drug and vaccine interactions. Read More
Sci Signal 2018 Dec 11;11(560). Epub 2018 Dec 11.
Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del IPN, Ciudad de México, México.
The auxiliary β subunit of the cardiac Ca1.2 channel plays a poorly understood role in gene transcription. Here, we characterized the regulatory effects of the β subunit in H9c2 rat cardiac cells on the abundances of mRNA [which encodes interferon-β (IFN-β)] and of the IFN-β-related genes , , , , , and , as well as on the abundances of the antiviral proteins DDX58, IRF7, STAT2, and IFITM3. Read More
Rev Chilena Infectol 2018 ;35(3):332-333
Centro de Investigaciones Biomédicas, Universidad Autónoma de Campeche, Campeche, México.
Among the infectious diseases characterized by a febrile picture are: dengue, leptospirosis, rickettsiosis and salmonellosis, among others. The objective of this study was to identify IgM antibodies against dengue and Leptospira in febrile patientes. The seropositivity for IgM antibodies to dengue was 34%; 26. Read More
Front Pharmacol 2018 26;9:1355. Epub 2018 Nov 26.
Natural Drug Research Laboratory, Department of Biotechnology, School of Biosciences, Periyar University, Salem, India.
Vector-borne diseases like malaria, filariasis, and dengue are transmitted by mosquitoes and they cause global mortality and morbidity due to an increased resistance against commercial insecticides. The present study was aimed to evaluate the neurobehavioral toxicity, knock-down effect, histopathology, ovicidal, adulticidal, and smoke toxicity effect of extract against three mosquito species, namely , and (Diptera: Culicidae). The isolated fungal strain was identified as (GenBank accession no: KX694148. Read More
Microbiol Resour Announc 2018 Sep 27;7(12). Epub 2018 Sep 27.
Public Health Virology Laboratory, Forensic and Scientific Services, Coopers Plains, Queensland, Australia.
A male patient in his 50s who traveled from Papua New Guinea (PNG) to Australia in 2016 was diagnosed with a dengue virus serotype 4 (DENV-4) infection, and the virus was isolated from his acute-phase serum. Here, we describe the first complete genome sequence of a DENV-4 strain from PNG. Read More
Biomed Res Int 2018 6;2018:6170502. Epub 2018 Nov 6.
College of Allied Health Science, Suan Sunandha Rajabhat University, Samut Songkhram 75000, Thailand.
It is often challenging to identify mosquito vectors in the field based on morphological features due to their similar morphologies and difficulties in obtaining undamaged samples but is required for their successful control. Geometric morphometrics (GM) overcomes this issue by analyzing a suite of traits simultaneously and has the added advantages of being easy to use, low cost, and quick. Therefore, this research compared the efficiency and precision of landmark- and outline-based GM techniques for separating species of mosquitoes in Huay Nam Nak village, Ratchaburi Province, Thailand. Read More
Cureus 2018 Oct 1;10(10):e3398. Epub 2018 Oct 1.
Epidemiology and Public Health, Griffith University, Brisbane, AUS.
Dengue fever is a major public health concern in Bangladesh with increased incidence during monsoon. We aimed to assess the correlation of temperature, humidity, and rainfall on dengue fever in two dengue endemic cities in Bangladesh. It was a time series analysis of climate factors and dengue occurrence data in Dhaka and Chittagong cities from 1 January 2000 to 31 December 2009. Read More
Hawaii J Med Public Health 2018 Dec;77(12):315-318
Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, HI (WYT, WKW).
The four serotypes of dengue virus (DENV) cause the most important and common arthropod-borne viral diseases in humans. There have been three major dengue outbreaks in Hawai'i since 1946. The most recent and largest outbreak occurred on Hawai'i Island in 2015-2016. Read More
PLoS One 2018 11;13(12):e0208810. Epub 2018 Dec 11.
Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China.
Background: Dengue is one of the most important vector-bore infectious diseases in China because of its drastic increase in incidence, geographic extension and profound influence on China's economy. This study aims to retrospectively uncover the epidemiological profile of dengue in Zhejiang, one of the most developed provinces in China, and to find the problem existing in dengue control and prevention.
Methodology: Descriptive analyses on the dengue incidence and associated factors were performed. Read More
Ann Indian Acad Neurol 2018 Oct-Dec;21(4):315-317
Department of Neurology, King George's Medical University, Lucknow, Uttar Pradesh, India.
Guillain-Barré syndrome (GBS) is an infrequent neurological complication of dengue viral infection. It is broadly divided into either acute inflammatory demyelinating variety or an axonal variety (acute motor axonal and acute sensory and motor axonal variants). Axonal variants are distinctly infrequent. Read More
J Antibiot (Tokyo) 2018 Dec 10. Epub 2018 Dec 10.
Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan.
Two new antibiotics, designated virantmycin B (1) and C (2), were isolated from the cultured broth of Streptomyces sp. AM-2504. Compounds 1 and 2 were purified by Diaion HP-20, silica gel, and octadecylsilane chromatography, followed by high-performance liquid chromatography. Read More
Nat Commun 2018 12 7;9(1):5242. Epub 2018 Dec 7.
Centre for Dengue Research, University of Sri Jayewardenepura, Nugegoda, 10100, Sri Lanka.
The role of NS1-specific antibodies in the pathogenesis of dengue virus infection is poorly understood. Here we investigate the immunoglobulin responses of patients with dengue fever (DF) and dengue hemorrhagic fever (DHF) to NS1. Antibody responses to recombinant-NS1 are assessed in serum samples throughout illness of patients with acute secondary DENV1 and DENV2 infection by ELISA. Read More
Proc Natl Acad Sci U S A 2018 Dec 7. Epub 2018 Dec 7.
Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305;
Dengue virus (DENV) infection can result in severe complications. However, the understanding of the molecular correlates of severity is limited, partly due to difficulties in defining the peripheral blood mononuclear cells (PBMCs) that contain DENV RNA in vivo. Accordingly, there are currently no biomarkers predictive of progression to severe dengue (SD). Read More
Eur J Med Chem 2018 Nov 28;163:256-265. Epub 2018 Nov 28.
Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Herestraat 49, bus 1041, 3000, Leuven, Belgium. Electronic address:
Cyclin G-associated kinase (GAK) is a cellular regulator of the clathrin-associated host adaptor proteins AP-1 and AP-2, which regulates intracellular trafficking of dengue virus during early and late stages of the viral lifecycle. Previously, the discovery of isothiazolo[4,3-b]pyridines as potent and selective GAK inhibitors with promising antiviral activity was reported. In this manuscript, the synthesis of isothiazolo[4,3-b]pyridines with a carbon-linked substituent at position 3 is described by the application of regioselective Suzuki and Sonogashira coupling reactions. Read More
Antiviral Res 2018 Dec 6. Epub 2018 Dec 6.
Department of Microbiology and Immunology, Georgetown University, Washington, D.C, USA. Electronic address:
The dengue virus is considered to be a globally important human pathogen prevalent in tropical and subtropical regions of the world. According to a recent estimate, the disease burden due to DENV infections is ∼390 million infections per year globally in ∼100 countries including the southern US, Puerto Rico and Hawaii, resulting in nearly ∼25,000 deaths mostly among children. Despite the significant morbidity and mortality that results from DENV infections, there is currently no effective chemotherapeutic treatment for DENV infections. Read More
Int J Infect Dis 2018 Dec 7. Epub 2018 Dec 7.
Translational Health Science and Technology Institute, Faridabad, Haryana, INDIA. Electronic address:
Objectives: To characterize the in vitro replication fitness, viral diversity and phylogeny of dengue viruses (DENV) isolated from Indian patients.
Methods: DENV was isolated from whole blood collected from patients by passaging in cell culture. Passage 3 viruses were used for growth kinetics in C6/36 mosquito cells. Read More
Int J Infect Dis 2018 Dec 5. Epub 2018 Dec 5.
Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, PR China; Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, PR China; Yunnan Key Laboratory of Vector-borne Infectious Disease, Kunming, PR China. Electronic address:
Background: Xishuangbanna, a border area of China, Burma and Laos, had its first major DENV-1 outbreak in 2017. This study aims to explore the genetic characterization, potential source and evolution of the viruses in outbreak.
Methods: The structural protein C/prM/E genes of viruses isolated from local residents or Burmese travelers were sequenced followed by mutation, phylogenetic, homologous recombination, molecular clock and demographic reconstruction analysis. Read More
J Microbiol Immunol Infect 2018 Nov 23. Epub 2018 Nov 23.
Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan; Centre for Infection Control, National Cheng Kung University Hospital, Tainan, Taiwan; Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan. Electronic address:
Background: Dengue is an important mosquito-borne tropical viral disease and dual infection, though rare, has been regarded as a risk factor for severe disease and mortality. However, few studies focused on bloodstream infections (BSIs) and empirical antibiotic therapy rarely addressed.
Methods: Dengue patients with concurrent or subsequent BSIs between July 1 and December 31, 2015 were included. Read More
EBioMedicine 2018 Dec 5. Epub 2018 Dec 5.
Disease Biology Laboratory, Regional Centre for Biotechnology, National Capital Region Biotech Science Cluster, Faridabad, India. Electronic address:
Background: Activated platelets release cytokines/proteins including CXCL4 (PF4), CCL5 and fibrinopeptides, which regulate infection of several pathogenic viruses such as HIV, H1N1 and HCV in human. Since platelet activation is the hallmark of Dengue virus (DV) infection, we investigated the role of platelets in DV replication and also in a closely related Japanese Encephalitis virus (JEV).
Methods And Findings: Microscopy and PCR analysis revealed a 4-fold increase in DV replication in primary monocytes or monocytic THP-1 cells in vitro upon incubation with either DV-activated platelets or supernatant from DV-activated platelets. Read More
BMC Infect Dis 2018 Dec 10;18(1):641. Epub 2018 Dec 10.
Oxford University Hospitals, John Radcliffe Hospital, Oxford, OX3 9DU, UK.
Background: Dengue Virus (DENV) and Zika Virus (ZIKV) are closely related flaviviruses, circulating in overlapping geographical regions. The recent ZIKV epidemic has been linked to an explosion in reports of microcephaly and neurological defects. It is conceivable that our knowledge of DENV might potentiate the development of a ZIKV vaccine due to the close phylogenetic relationship between these flaviviruses and cross-reactive antibodies, principally to the envelope protein (E protein). Read More
Antiviral Res 2018 Dec 3;161:163-168. Epub 2018 Dec 3.
Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA; Howard Hughes Medical Institute, Chevy Chase, MD, USA.
Arboviruses represent a group of pathogens that can spread efficiently throughout human populations by hematophagous arthropod vectors. The mosquito-borne (re)emerging Chikungunya and Dengue viruses belong to the alphavirus and flavivirus genus, respectively, with no approved therapeutics or safe vaccines for humans. Transmitted by the same vector Aedes spp. Read More
PLoS One 2018 6;13(12):e0208203. Epub 2018 Dec 6.
IBM Research Australia, Southgate, Victoria, Australia.
Background: Dengue is the fastest spreading vector-borne viral disease, resulting in an estimated 390 million infections annually. Precise prediction of many attributes related to dengue is still a challenge due to the complex dynamics of the disease. Important attributes to predict include: the risk of and risk factors for an infection; infection severity; and the timing and magnitude of outbreaks. Read More
PLoS Negl Trop Dis 2018 Dec 6;12(12):e0006845. Epub 2018 Dec 6.
MIVEGEC, IRD, CNRS, University of Montpellier, Montpellier, France.
Background: Diseases caused by Aedes-borne viruses, such as dengue, Zika, chikungunya, and yellow fever, are emerging and reemerging globally. The causes are multifactorial and include global trade, international travel, urbanisation, water storage practices, lack of resources for intervention, and an inadequate evidence base for the public health impact of Aedes control tools. National authorities need comprehensive evidence-based guidance on how and when to implement Aedes control measures tailored to local entomological and epidemiological conditions. Read More
PLoS Negl Trop Dis 2018 Dec 6;12(12):e0006935. Epub 2018 Dec 6.
Draper, Cambridge, Massachusetts, United States of America.
Background: Rainfall patterns are one of the main drivers of dengue transmission as mosquitoes require standing water to reproduce. However, excess rainfall can be disruptive to the Aedes reproductive cycle by "flushing out" aquatic stages from breeding sites. We developed models to predict the occurrence of such "flushing" events from rainfall data and to evaluate the effect of flushing on dengue outbreak risk in Singapore between 2000 and 2016. Read More
Pathog Glob Health 2018 Dec 6:1-9. Epub 2018 Dec 6.
a Heidelberg Institute of Global Health , University of Heidelberg , Germany.
This review discusses biological and chemical methods for dengue vector control, using recently emerging summary evidence, meta-analyses and systematic reviews to conclude on practical public health recommendations for Aedes control, which is increasingly relevant in an era of widespread Chikungunya, yellow feer and Zika outbreaks. The analysis follows an a priori framework of systematic reviews by the authors on vector control methods, distinguishing vector control methods into biological, chemical and environmental methods. Findings of each published systematic review by the authors, following each individual vector control method, are summarised and compared in the discussion against the findings of existing meta-analyses covering all vector control methods. Read More
Proc Natl Acad Sci U S A 2018 Dec 5. Epub 2018 Dec 5.
Department of Microbiology and Immunology, University of North Carolina School of Medicine, Chapel Hill, NC 27599;
The four dengue virus (DENV) serotypes are mosquito-borne flaviviruses of humans. The interactions between DENVs and the human host that lead to asymptomatic, mild, or severe disease are poorly understood, in part, because laboratory models are poor surrogates for human DENV disease. Virologists are interested in how the properties of DENVs replicating in people compare with virions propagated on laboratory cell lines, which are widely used for research and vaccine development. Read More
J Pharmacol Sci 2018 Dec 25;138(4):247-256. Epub 2018 Jun 25.
State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, PR China. Electronic address:
Dengue virus (DENV) annually infects 400 million people worldwide. Unfortunately, there is lack of widely protective vaccine or drugs against DENV. The viral RNA-dependent RNA polymerase (RdRp) of NS5 protein is highly conserved among different DENV subtypes, thus presenting itself as an attractive target for drug design. Read More
BMC Complement Altern Med 2018 Dec 5;18(1):320. Epub 2018 Dec 5.
Herbal Medicine Research Center, Institute for Medical Research, Kuala Lumpur, Malaysia.
Background: Carica papaya leaf juice (CPLJ) was well known for its thrombocytosis activity in rodents and dengue patients. However, the effect of CPLJ treatment on other parameters that could contribute to dengue pathogenesis such as nonstructural protein 1 (NS1) production and viremia level have never been highlighted in any clinical and in vivo studies. The aim of this study is to investigate the effect of freeze-dried CPLJ treatment on NS1 and viremia levels of dengue fever mouse model. Read More
Virus Res 2018 Nov 30;260:142-150. Epub 2018 Nov 30.
Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand. Electronic address:
Dengue fever is the most prevalent arthropod-borne viral disease, and no specific therapeutic or promising antiviral drug is available for its treatment. Peptide inhibitors are less toxic than synthetic compounds and have found proven effective against viral infections. Here, three peptides that mimic part of the E protein of the dengue virus (DENV) were synthesized and evaluated for their inhibitory activity against four serotypes of DENV in African green monkey kidney (Vero) and rhesus macaque (Macaca mulatta) monkey kidney (LLC-MK2) cell lines. Read More
J Insect Sci 2018 Nov 1;18(6). Epub 2018 Nov 1.
C2D2 Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada.
The composition, abundance, and diversity of midgut bacteria in mosquitoes can influence pathogen transmission. We used 16S rRNA microbiome profiling to survey midgut microbial diversity in pooled samples of laboratory colonized dengue-refractory, Cali-MIB, and dengue-susceptible, Cali-S Aedes aegypti (Linnaeus). The 16S rRNA sequences from the sugar-fed midguts of adult females clustered to 63 amplicon sequence variants (ASVs), primarily from Proteobacteria, Firmicutes, Flavobacteria, and Actinobacteria. Read More
PLoS Negl Trop Dis 2018 Dec 3;12(12):e0006990. Epub 2018 Dec 3.
Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America.
Background: After being eliminated during the 1950s, dengue reemerged in Brazil in the 1980s. Since then, incidence of the disease has increased, as serotypes move within and between cities. The co-circulation of multiple serotypes contributes to cycles of epidemic and interepidemic years, and a seasonal pattern of transmission is observed annually. Read More