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Vet Parasitol 2018 Nov 2;263:34-48. Epub 2018 Oct 2.

United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, MD, 20705-2350, USA. Electronic address:

Until the discovery of Toxoplasma gondii oocysts in cat feces in 1970, little was known of coccidiosis in cats. Until 1970, three coccidian parasites based on different sized oocysts were recognized, the parasite with large oocysts (∼40 μm long and called Isospora felis), medium sized oocysts (∼25 μm long, called Isospora rivolta), and small sized oocysts (14 μm or less, called Isospora bigemina) were known and they were considered not host-specific. Later, it was demonstrated that these parasites were host-specific and had also extra-intestinal stages. Read More

Semin Diagn Pathol 2018 Nov 16;35(6):370-380. Epub 2018 Oct 16.

Department of Pathology, St. Jude Medical Center, Fullerton, CA 92835, United States. Electronic address:

The alimentary tract serves as host to a large number of diseases. In the non-neoplastic group of disorders, conventional histochemistry continues to play an important diagnostic role. It is particularly important in recognizing specific infectious diseases, such as Helicobacter gastritis, Whipple disease, intestinal tuberculosis and other forms of mycobacteriosis, malakoplakia, intestinal spirochetosis, fungal enteritides, amebiasis, cryptosporidiosis, isosporiasis, and microsporidiosis. Read More

Parasitol Res 2018 Aug 9;117(8):2635-2641. Epub 2018 Jun 9.

Departamento de Biologia Animal, ICBS, UFRRJ, BR-465 Km 7, Seropédica, RJ, 23897-000, Brazil.

In the current study, Isospora sagittulae McQuistion and Capparella, 1992 (Protozoa: Apicomplexa: Eimeriidae) is reported from white-shouldered fire-eyes Pyriglena leucoptera (Vieillot, 1818) in the Atlantic Forest in southeastern Brazil. To date, this coccidian species was described from antbirds in Ecuador and Brazilian Amazon. In this sense, oocysts and measurements of the description of I. Read More

Vet Parasitol 2018 May 13;255:98-101. Epub 2018 Apr 13.

Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil. Electronic address:

Systemic isosporosis, also called atoxoplasmosis or visceral coccidiosis, is a disease that affects birds in general. Pathogenesis of systemic isosporosis and its etiologic agent have not been well characterized, but taxonomically Atoxoplasma is currently considered a junior objective synonym of Isospora. The present report aimed to describe pathological and molecular findings of systemic isosporosis in captive green-winged saltators (Saltator similis) from the State of Espírito Santo, Brazil. Read More

Parasitol Int 2018 08 3;67(4):413-414. Epub 2018 Apr 3.

"Sapienza" University of Rome, Department of Clinical Medicine, viale del Policlinico 155, 00161 Rome, Italy.

Ann Diagn Pathol 2018 Apr 10;33:17-22. Epub 2017 Nov 10.

Faculty of Medicine, Universidad Mayor, Santiago de Chile, Chile.

Parasit Vectors 2018 01 9;11(1):28. Epub 2018 Jan 9.

State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China.

Background: Diarrhea caused by opportunistic intestinal protozoa is a common problem in HIV infection. We aimed to establish the prevalence of Cryptosporidium, misrosporidia, and Isospora in HIV-infected people using a systematic review and meta-analysis, which is central to developing public policy and clinical services.

Methods: We searched PubMed, ScienceDirect, Google Scholar, Embase, Chinese Web of Knowledge, Wanfang, and Chongqing VIP databases for studies reporting Cryptosporidium, microsporidia, or Isospora infection in HIV-infected people. Read More

Avian Pathol 2018 Apr 3;47(2):206-212. Epub 2018 Jan 3.

b Department of Parasitology, Faculty of Veterinary Medicine , University of Tehran , Iran.

Coccidian parasites, especially Isospora, are prevalent parasites in Passeriformes. Isosporan oocysts from common mynahs (Acridotheres tristis) are incompletely described. Detailed knowledge on biology, prevalence, pathogenesis and treatment of avian isosporiasis is scant. Read More

Parasitol Int 2018 Feb 6;67(1):1-3. Epub 2017 Oct 6.

Laboratoire de Parasitologie-Mycologie, Centre Hospitalier Universitaire de Grenoble Alpes, CS 10217, Grenoble Cedex 9 38043, France; Institute for Advanced Biosciences (IAB), Team Host-Pathogen Interactions and Immunity to Infection, INSERM U1209 - CNRS UMR5309, Université Grenoble Alpes, Grenoble 38700, France. Electronic address:

Cystoisospora belli (previously known as Isospora belli) is a tropical coccidian parasite sometimes leading to severe diarrhea in immunocompromised patients. Here we describe a fatal case of cystoisosporiasis in a non HIV-immunocompromised 71-year-old female with no recent travel history. Infection was either latent or potentially caused by the consumption of contaminated imported food from Asia. Read More

Parasitol Int 2017 Dec 21;66(6):806-809. Epub 2017 Sep 21.

Department of Farm Animals, Division of Swine Medicine, Vetsuisse-Faculty, University of Zurich, Winterthurerstrasse 260, CH-8057 Zurich, Switzerland.

Cystoisospora (syn. Isospora) suis is the causative agent of neonatal porcine coccidiosis and one of the main causes of diarrhoea in suckling piglets worldwide. Infection with porcine cytomegalovirus (PCMV, Suid herpesvirus 2) causes inclusion body rhinitis in pigs. Read More

Clin Microbiol Infect 2018 Jan 13;24(1):43-44. Epub 2017 Jul 13.

Servicio de Microbiología clínica, Hospital Universitario Dr Peset, Valencia, Spain.

Ghana Med J 2016 Dec;50(4):201-206

Department of Veterinary Microbiology and Parasitology, University of Ibadan, Ibadan, Oyo State, Nigeria.

Background: Humans can get infected through direct or indirect contact with infective stages of zoonotic parasites shed to the environment through dog faeces.

Objectives: This study was designed to investigate the presence of gastrointestinal parasites present in dog faeces shed on the street of Ibadan metropolis, one of the largest cities in Africa.

Methods: Twenty-three locations were randomly selected using grid-sampling method. Read More

Parasitol Int 2017 Oct 8;66(5):588-592. Epub 2017 May 8.

Laboratory of Sustainable Environmental Biology, Graduate School of Agricultural Science, Tohoku University, 232-3 Yomogida, Naruko-Onsen, Osaki, Miyagi 989-6711, Japan. Electronic address:

The domestic pigeon, Columba livia domestica, is reared for meat production, as a pet, or for racing. Few reports have characterized the parasitic protists from the genus Isospora isolated from Columbiformes. We detected Isospora-like oocysts from C. Read More

Trop Parasitol 2017 Jan-Jun;7(1):37-40

Division of Clinical Microbiology and Molecular Medicine, Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, India.

Background: Diarrhoea is an important cause of both morbidity and mortality among children in India. Coccidian parasitic infections are an important cause of diarrhea in immunocompromised patients, but their investigations are rarely sought by the treating physicians in seemingly immunocompetent children. This study was aimed to find the incidence rate of coccidian parasites in all children presented with diarrhoea, irrespective of their immune status. Read More

Acta Parasitol 2017 Jun;62(2):306-311

Departamento de Biologia Animal, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Rural do Rio de Janeiro, BR 465, Km 7, CEP 23890-000, Seropédica, Rio de Janeiro.

Despite 12 coccidian species had been recorded from passerines of the Thraupidae family, none of them has been reported in the Parque Nacional do Itatiaia, in Southeastern Brazil. This locality is a protected area with a high degree of vulnerability, and is considered a "conservation island" of biodiversity. The aim of the current work was describe Isospora ramphoceli Berto, Flausino, Luz, Ferreira, Lopes, 2010 from ruby-crowned tanagers Tachyphonus coronatus Vieillot, 1822 in the Parque Nacional do Itatiaia. Read More

J Parasitol 2017 06 20;103(3):285-291. Epub 2017 Mar 20.

Programa de Pós-Graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, Brazil. Correspondence should be sent to Bruno P. Berto at:

A new coccidian species (Protozoa: Apicomplexa: Isospora) is described parasitizing white-necked thrushes Turdus albicollis Vieillot, 1818; rufous-bellied thrushes Turdus rufiventris Vieillot, 1818; pale-breasted thrushes Turdus leucomelas Vieillot, 1818; and yellow-legged thrushes Turdus flavipes Vieillot, 1818 from 3 different localities in Brazil. Isospora sabiai n. sp. Read More

Pol J Pathol 2016;67(3):270-276

Basic Sciences in Infectious Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. and

Cholecystitis is one of the common surgical indications affecting human beings in many countries. A variety of infectious agents can be associated with acute or chronic acalculous cholecystitis, especially in HIV/AIDS patients. In this investigation, the authors aim to describe two cases of histologically and molecularly documented cystoisosporiasis (syn. Read More

Iran J Parasitol 2016 Jul-Sep;11(3):332-338

Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.

Background: and are known as one of the main cause of diarrhea in both immunocompetent and immunocompromised subjects, all over the world. Incidence of enteropathogens such as spp. and considerably has increased, since immunodeficiency virus (HIV) rapidly disseminated. Read More

Parasitol Int 2017 Apr 18;66(2):100-105. Epub 2016 Dec 18.

Laboratory of Veterinary Parasitology, Nippon Veterinary and Life Science University, 1-7-1 Kyonancho, Musashino, Tokyo 180-8602, Japan.

Five individuals of the domestic Java sparrows, Lonchura oryzivora (Aves: Estrildidae), were examined for coccidian parasites. Sporulated oocysts had two sporocysts containing four sporozoites each. Sporulated oocysts (n=30) were spherical, with a two splinter-like polar granules. Read More

Parasitol Int 2016 Dec 14;65(6 Pt A):618-624. Epub 2016 Sep 14.

Institute of Parasitology, Vetsuisse-Faculty, University of Zurich, Winterthurerstrasse 266a, CH-8057 Zurich, Switzerland; Department of Farm Animals, Division of Swine Medicine, Vetsuisse-Faculty, University of Zurich, Winterthurerstrasse 260, CH-8057 Zurich, Switzerland. Electronic address:

In order to estimate the diversity, clinical involvement and zoonotic potential of parasites in pigs submitted for diagnosis to the PathoPig project of the Swiss Federal Food Safety and Veterinary Office, faeces (n=125) from suckling piglets (n=39), weaners (n=60) and piglets beginning fattening (n=26) from 74 Swiss farms were examined by 3 coproscopical methods (i.e. sedimentation/zinc chloride-flotation; SAFC and Ziehl-Neelsen staining). Read More

Turkiye Parazitol Derg 2016 Jun;40(2):107-9

Yüzüncü Yıl Üniversitesi Tıp Fakültesi, Parazitoloji Anabilim Dalı, Van, Türkiye.

The aim of this study was to present three cystoisosporiasis cases diagnosed in pediatric patients of the Yuzuncu Yil University Medical Faculty. In the study, stool samples of the patients were evaluated by native-Lugol and modified acid-fast staining methods in the Parasitology Laboratory. The first case was a 4-year-old male child diagnosed with acute lymphoblastic leukemia (ALL). Read More

Acta Parasitol 2016 Sep;61(3):636-8

Coprological analysis of a sample from one free-living hedgehog was done with the use of a direct flotation method with additional incubation of fecal material. The study revealed three types of eggs and oocysts in the feces. The most commonly diagnosed were oocysts of Isospora rastegaievae (543/3g), while oocysts of Monocystis sp. Read More

Am J Surg Pathol 2016 08;40(8):1070-4

*Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, AR †Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL ‡Department of Pathology, Wright State University, Dayton §Department of Pathology, Cleveland Clinic, Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland, OH.

Cystoisospora belli, previously known as Isospora belli, is an obligate intracellular coccidian parasite that is most often associated with gastrointestinal disease in immunocompromised patients. In this study, we detail the clinicopathologic features of 18 cases of Cystoisospora infection affecting the gallbladder in immunocompetent individuals and compare them with a control group. Each case was reviewed for cholecystitis (none, acute, chronic), epithelial disarray, presence of intraepithelial lymphocytes (none, rare [≤5 per 20 epithelial cells], present [>5 per 20 epithelial cells]), architectural distortion, intramucosal eosinophilia, and mural thickening/serositis. Read More

Exp Parasitol 2016 Jul 21;166:181-8. Epub 2016 Apr 21.

School of Veterinary and Life Sciences, Murdoch University, 6150, Murdoch, Western Australia, Australia.

A new Isospora (Apicomplexa: Eimeriidae) species is described from a single red-browed finch (Neochmia temporalis) (subspecies N. temporalis temporalis), that was part of a captive population in Western Australia. Sporulated oocysts of this isolate are spherical, 18. Read More

Exp Parasitol 2016 Jun 8;165:1-6. Epub 2016 Mar 8.

College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China; Animal Pharmaceutical Engineering Laboratory of Fujian Province, Fuzhou 350002, Fujian, China. Electronic address:

Isospora suis is an intestinal protozoan parasite in pigs. The 2-3 weeks old piglets are most often infected by I. suis because their immune system is not fully developed. Read More

Medicine (Baltimore) 2016 Mar;95(10):e3071

From the Division of Gastroenterology and Hepatology, Department of Internal Medicine (K-WC, SSC, L-SL, C-KW), Department of Pathology (H-LE); Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taiwan, Republic of China.

This report describes the novel sampling of bile from the biliary endoscopic intervention for the molecular identification of parasite infection.A 63-year-old Vietnamese man underwent travel health examination in our hospital. Physical examination showed that his height was 159 cm and weight was 41 kg. Read More

Exp Parasitol 2016 Apr 26;163:16-23. Epub 2016 Jan 26.

School of Veterinary and Life Sciences, Murdoch University, Murdoch, Western Australia, 6150, Australia.

A new Isospora (Apicomplexa:Eimeriidae) species is described from a single yellow-throated miner bird (Manorina flavigula) (subspecies M. f. wayensis) in Western Australia. Read More

BMC Res Notes 2016 Jan 11;9:22. Epub 2016 Jan 11.

School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil.

Background: Diarrhea in piglets directly affects commercial swine production. The disease results from the interaction of pathogens with the host immune system and is also affected by management procedures. Several pathogenic agents such as Campylobacter spp. Read More

BMC Infect Dis 2016 Jan 11;16. Epub 2016 Jan 11.

Department of Medical Laboratory Sciences, Faculty of Health Sciences, University of Buea, Buea, Cameroon.

Background: Intestinal parasitic infections (IPI) are a major public health concern in HIV/AIDS patients particularly in resource-limited settings of Sub-Saharan Africa. Studies investigating the relationship between intestinal parasitic infections and CD4(+) T cell counts and diarrhea in HIV/AIDS patients with or without antiretroviral therapy in the region are not readily available hence the need to perform this study.

Methods: In a comparative cross-sectional study involving 52 pre-ART and 248 on-ART HIV patients. Read More

Exp Parasitol 2015 Dec 29;159:59-66. Epub 2015 Aug 29.

School of Veterinary and Life Sciences, Murdoch University, Murdoch, Western Australia 6150, Australia.

A new species, Isospora serinuse n. sp., (Apicomplexa:Eimeriidae) is described from a single domestic canary (Serinus canaria forma domestica) (subspecies S. Read More

BMJ Case Rep 2015 Jun 11;2015. Epub 2015 Jun 11.

Department of HPB Surgery, Cleveland Clinic, Cleveland, Ohio, USA.

A 47-year-old woman presented with a history of vague abdominal pain for several years, which worsened over the past 2 months, with pain more prominent in the right upper quadrant. She also had a history of peptic ulcer disease. The ultrasound scan of right upper quadrant revealed normal gallbladder and oesophagogastroduodenoscopy was unremarkable. Read More

Parasitol Res 2015 Jun 14;114(6):2231-5. Epub 2015 Mar 14.

Institute for Conservation Biology and Environmental Management, School of Biological Sciences, University of Wollongong, Wollongong, NSW 2522, Australia,

Urbanisation has the potential to increase the risk of parasitism on wildlife. Although some ectoparasite groups appear unaffected, different responses are hypothesised for parasites with simpler life histories such as gastrointestinal parasites. Red-browed finches (RBF) and the superb fairywrens (SFW), two native passerine birds affected by urbanisation, were examined for Coccidian parasites along an urbanisation gradient in New South Wales, Australia, in order to detect if prevalence might be directly related to the degree of urbanisation. Read More

Exp Parasitol 2015 Apr-May;151-152:49-55. Epub 2015 Jan 22.

School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA, 6150, Australia.

A new species, Isospora streperae n. sp., (Apicomplexa: Eimeriidae) is described from a single grey currawong bird (Strepera versicolour) (subspecies S. Read More

J Parasit Dis 2014 Dec 7;38(4):444-6. Epub 2013 Mar 7.

Department of Pathology, Children's Medical Center, Tehran University of Medical Sciences, No. 62, Dr. Gharib St., Keshavarz Blvd., Tehran, Iran.

Persistent diarrhea is a major manifestation of Acquired Immunodeficiency Syndrome (AIDS) which might be more complicated in Human Immunodeficiency Virus (HIV) infected children especially those from developing countries. There are numerous reports showing the emergence of intestinal opportunistic coccidian parasites, mostly Cryptosporidium parvum and Isospora belli in HIV-infected individuals. The prevalence of isosporiasis is probably underestimated in developing countries because routinely not all HIV-infected patients are examined for the presence of this protozoan infection. Read More

Physiol Biochem Zool 2014 Sep-Oct;87(5):729-39. Epub 2014 Aug 15.

MTA-DE "Lendület" Behavioral Ecology Research Group, Department of Evolutionary Zoology and Human Biology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; 2Evolutionary Ecology Group, Hungarian Department of Biology and Ecology, Babeş-Bolyai University, Clinicilor Street 5-7, RO-400006 Cluj Napoca, Romania; 3Department of Molecular Biology and Biotechnology, Babeş-Bolyai University, Clinicilor Street 5-7, RO-400006 Cluj Napoca, Romania; 4Research and Innovation Portfolio, University of Toronto, Toronto, Ontario, Canada; 5Animal Ecology Group, Center for Ecological and Evolutionary Studies, University of Groningen, Groningen, The Netherlands.

Temporally changing environmental conditions occur in most parts of the world and can exert strong pressure on the immune defense of organisms. Seasonality may result in changes in physiological traits over the year, and such changes may be essential for the optimization of defense against infections. Evidence from field and laboratory studies suggest the existence of links between environmental conditions, such as infection risk, and the ability of animals to mount an immune response or to overcome infections; however, the importance of parasites in mediating seasonal change in immune defense is still debated. Read More

Indian J Dermatol Venereol Leprol 2014 Jul-Aug;80(4):342-3

Department of Dermatology, Seth Gordhandas Sunderdas Medical College and King Edward Memorial Hospital, Mumbai, Maharashtra, India.

Indian J Pathol Microbiol 2014 Apr-Jun;57(2):272-4

Department of Parasitology, Post Graduate Institute of Medical Education and Research, Chandigarh, Punjab and Haryana, India.

Background: Cystoisospora (Isospora) belli is a coccidian, protozoan parasite that resides in the gastrointestinal tract of humans. It is mainly reported from HIV-positive individuals. However, a few cases have been reported in other immunosuppressed individuals including renal transplant patients, and those with lymphoma and leukemia. Read More

Acta Parasitol 2014 Jun 15;59(2):272-5. Epub 2014 May 15.

Programa de Pós-graduação em Ciência, Tecnologia e Inovação em Agropecuária, Universidade Federal Rural do Rio de Janeiro (UFRRJ), BR-465 km 7, 23897-970, Seropédica, RJ, Brazil.

A new coccidian species (Protozoa: Apicomplexa: Eimeriidae) are reported from the white-necked thrush Turdus albicollis Vieillot, 1818, a very common species in South America. Isospora massardi sp. nov. Read More

Parasitol Res 2014 May 19;113(5):1863-73. Epub 2014 Mar 19.

Department of Pathobiology, Institute of Parasitology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210, Vienna, Austria,

For reliable predictions of clinical and parasitological outcome of experimental infections with parasites, different models must be evaluated for possible influences of infection time point, infection dose and host-specific parameters such as breed or litter size. To address these issues for Cystoisospora (syn. Isospora) suis, the causative agent of porcine neonatal coccidiosis, 181 piglets from 90 litters (hybrid crosses of different breeds) were included in a retrospective study to evaluate differences in time point and dose of infection in four different experimental models ((1) 1,500 oocysts on the 4th day of life, d. Read More

Exp Parasitol 2014 May 3;140:1-7. Epub 2014 Mar 3.

School of Veterinary and Life Sciences, Murdoch University, Murdoch, Western Australia 6150, Australia. Electronic address:

A new species, Isospora anthochaerae n. sp. is described from a Red wattlebird (Anthochaera carunculata). Read More

BMC Infect Dis 2014 Feb 22;14:100. Epub 2014 Feb 22.

Microbiology-Parasitology Unit, School of Medicine, Hawassa University, Hawassa, Ethiopia.

Background: Cryptosporidium spp and I. belli are intestinal opportunistic infections associated with HIV/AIDS. A decline in the incidence of these opportunistic infections due to HAART was reported. Read More

J Parasitol 2014 Jun 23;100(3):302-4. Epub 2014 Jan 23.

Southeastern Cooperative Wildlife Disease Study, Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia 30602, and Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, Georgia 30602.

Five of 16 (31%) rufous-capped warblers (Basileuterus rufifrons) and 2 of 5 (40%) ovenbirds ( Seiurus aurocapilla ) sampled from Costa Rica were positive for a novel species of Isospora. Oocysts have a thin, smooth, double-layered, colorless wall and measure 22.3 μm ± 1. Read More

Rev Bras Parasitol Vet 2013 Jan-Mar;22(1):64-70

Diurnal periodicity is a phenomenon that has been observed in coccidian of Isospora parasites of passerines, which have been eliminated great number of oocysts at dusk. The objective of this study was to evaluate the occurrence of periodicity of oocysts presence in the green-winged-saltator Saltator similis, and its use in the diagnosis of coccidiosis in wild birds in captivity. A total of 220 fecal samples were collected from birds, apprehended from illegal trading and kept in quarantine in CETAS∕IBAMA, in the morning and late afternoon, from May to November 2010. Read More

Avian Pathol 2013 Dec;42(6):569-71

a Veterinary Hospital VetPoint spol. s.r.o , Bratislava , Slovakia , tel: + 421948029674.

Passerines are frequently parasitized by coccidia, especially species of the genus Isospora, with extra-intestinal stages that can be highly pathogenic causing serious clinical damage in young birds. Whilst there is still no effective treatment to completely clear isosporoid coccidia with extra-intestinal stages from a host species, our results showed that prolonged treatment with toltrazuril (BAYER AG, Leverkusen, Germany) can decrease the oocysts in faeces and thus reduce the extra-intestinal phase of the infection. The toltrazuril treatment is therefore probably indirectly effective against the systemic form of atoxoplasmosis. Read More

Adv Biomed Res 2013 30;2:61. Epub 2013 Jul 30.

Department of Microbiology, ART Centre, M.K.C.G. Medical College, Berhampur, Odisha, India.

Background: To determine the prevalence of Isospora belli and its correlation with CD4+ cell counts in HIV-positive patients with diarrhea in this region.

Materials And Methods: Stool samples from 250 HIV-positive patients, including 200 with diarrhea and 50 without diarrhea included in the study were examined for the presence of enteric parasites under microscopy. Prevalence of the enteric parasites with special reference to I. Read More

Turkiye Parazitol Derg 2013 ;37(3):222-4

Ondokuz Mayıs Üniversitesi Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı, Samsun, Türkiye.

Isospora belli is a coccidian protozoon that can cause serious diarrhea especially in immunocompromised patients. The laboratory diagnosis depends primarily on the identification of oocysts in stool specimens by direct microscopic examination with iodine or special stains. This case is presented in order to draw attention to isosporiasis among the diarrheas that can be seen in elderly patients with several chronic diseases. Read More

Curr Opin Infect Dis 2013 Oct;26(5):479-83

Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru.

Purpose Of Review: The present review focuses on recent epidemiological and diagnostic advances in cystoisosporiasis and cyclosporiasis.

Recent Findings: Continuous outbreaks of these parasites occur worldwide. Sporadic cases in the United States are travel acquired, but also domestically acquired. Read More

J Parasitol 2013 Dec 5;99(6):1002-8. Epub 2013 Jul 5.

Faculdade de Farmácia, Universidade Federal da Bahia, Salvador, Bahia, Brazil, 40170-115.

Despite the availability of many parasitological methods for detection of Cryptosporidium and Isospora (Cystoisospora) belli in fecal samples, there are uncertainties about the accuracy of these techniques in laboratory practice. In this study, 27 formalin-fixed positive stool samples for Cryptosporidium and 15 for I. belli were analyzed by 2 concentration methods, sedimentation by centrifugation (SC) and formalin-ethyl acetate (FE), and by 3 tintorial techniques, modified Ziehl-Neelsen (ZN), safranin (SF), and auramine (AR). Read More

J Parasitol 2013 Dec 20;99(6):1019-23. Epub 2013 Jun 20.

Zoology Department, College of Science, King Saud University, Saudi Arabia, P.O. Box 2455, Riyadh 11451, Saudi Arabia.

Isospora bors n. sp. (Apicomplexa: Eimeriidae) is described from 6 of 30 (20%) Baiuch rock gecko Bunopus tuberculatus Blanford in Saudi Arabia. Read More

Korean J Parasitol 2013 Apr 25;51(2):207-12. Epub 2013 Apr 25.

Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul, Korea.

Chronic diarrhea with a 35 kg weight loss (75 kg to 40 kg) occurred during 2 years in an alcoholic patient was diagnosed with Isospora belli infection in the Republic of Korea. The patient, a 70-year old Korean male, had been a heavy drinker for more than 30 years. He was admitted to the Seoul National University Hospital because of long-standing diarrhea and severe weight loss. Read More