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Clement Isaac, Benjamin Igho Igbinosa, John Asekhaen Ohiolei, Catherine Eki Osimen
Some small mammals occur as household pests and harbour a number of parasites that could be of public health importance. This study profiled the helminth and protozoan parasites in trapped small mammals within and around human dwelling places (houses) located across 4 major towns (Auchi, Benin, Ekpoma, and Uromi) and environs in Edo state, Nigeria. Six genera ( Apodemus sp., Crocidura sp., Mastomys natalensis , Mus musculus , Rattus sp., and Sorex sp.) were identified from 502 trapped small mammals. Overall, M...
February 2018: Korean Journal of Parasitology
Rongchang Yang, Belinda Brice, Fuchun Jian, Una Ryan
A new Isospora (Apicomplexa:Eimeriidae) species is described from a silvereye (Zosterops lateralis) in Western Australia. Sporulated oocysts of this species are spherical, 24.2 (23.1-25.2) × 23.3 (22.8-23.9) μm, with a shape index (length/width) of 1.02, and with a smooth bi-layered oocyst wall, 1.2 μm thick (outer layer 0.9 μm, inner 0.3 μm). A polar granule is present, but the oocyst residuum and a micropyle are absent. The ovoid-shaped sporocysts are 16.1 (15.7-17.3) × 10.5 (15.7-17.3) μm and have a shape index of 1...
March 11, 2018: Parasitology Research
Patricio D Carrera-Játiva, Eric R Morgan, Michelle Barrows, Torsten Wronski
Gastrointestinal parasites are commonly reported in wild birds, but transmission amongst avifauna in zoological settings, and between these captive birds and wild birds in surrounding areas, remains poorly understood. A survey was undertaken to investigate the occurrence of gastrointestinal parasites in captive and free-ranging birds at Bristol Zoo Gardens between May and July 2016. A total of 348 fecal samples from 32 avian species were examined using the Mini-FLOTAC flotation method. Parasites were detected in 31% (45/145) of samples from captive birds and in 65...
March 2018: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Marzieh Tavakol, Seyed Alireza Mahdaviani, Mir Reza Ghaemi, Mohammad Vaezi, Atosa Dorudinia, Hamidreza Jamaati, Ali Akbar Velayati
Good's syndrome, the adult onset hypogammaglobulinemia associated with thymoma has been explained about six decades ago. It generally presents with recurrent infections and several paraneoplastic syndromes including myasthenia gravis, pure red cell aplasia, connective tissue disorders, superior vena cava, Horner's syndrome, lichen planus and inflammatory bowel disease. Lack of B cell, dysfunction of T cell, CD4+ T cell lymphopenia, reversed CD4/CD8+ T cell ratio, autoantibodies against Th17 related cytokines have been respected as the pathogenesis of the immune dysregulation this syndrome...
February 2018: Iranian Journal of Allergy, Asthma, and Immunology
Jessica Mitchell, Michael A Cant, Emma I K Vitikainen, Hazel J Nichols
Preference for uninfected mates is presumed beneficial as it minimizes one's risk of contracting an infection and infecting one's offspring. In avian systems, visual ornaments are often used to indicate parasite burdens and facilitate mate choice. However, in mammals, olfactory cues have been proposed to act as a mechanism allowing potential mates to be discriminated by infection status. The effect of infection upon mammalian mate choice is mainly studied in captive rodents where experimental trials support preference for the odors of uninfected mates and some data suggest scent marking is reduced in individuals with high infection burdens...
June 2017: Current Zoology
Jamille Karina Coelho Correa, Emil José Hernández-Ruz, Marcos Tobias de Santana Miglionico, Lúcio André Viana
A new coccidian species of the genus Isospora Schneider 1881 (Apicomplexa, Eimeriidae) is reported from a single specimen of chelid turtle, Platemys platycephala (Schneider, 1792), obtained in a flooded area of the Amazonian municipality of Altamira, in Pará State, northern Brazil. The oöcysts of Isospora platemysi n. sp. are subspheroidal, 19.0-24.0 × 22.5-18.5 (22.6 × 20.8) µm in size [length/width ratio 1.0-1.1 (1.1)], with a colourless wall, 1.0-1.9 (1.4) wide, with two smooth layers; polar granule is present, oöcyst residuum and micropyle are both absent...
February 8, 2018: Systematic Parasitology
Yu Liang, ZiJiao Zhao, JunJie Hu, Gerald W Esch, MingChun Peng, Qiong Liu, JinQing Chen
Disseminated visceral coccidiosis (DVC) is a widely distributed intestinal and extraintestinal disease of cranes caused by eimeriid coccidia and has lethal pathogenicity to several crane species. Here, feces of 164 black-necked cranes collected in Dashanbao Black-necked Crane National Nature Reserve, China, were examined to determine the prevalence of coccidial oocysts. Of the 164 fecal samples, 76 (46.3%) were positive for oocysts of Eimeria, including E. gruis in 59 (35.9%), E. reichenowi in 52 (31.7%), and E...
March 2018: Parasitology Research
Raquel Xavier, Ricardo Severino, Marcos Pérez-Losada, Camino Gestal, Rita Freitas, D James Harris, Ana Veríssimo, Daniela Rosado, Joanne Cable
BACKGROUND: The Apicomplexa from aquatic environments are understudied relative to their terrestrial counterparts, and the seminal work assessing the phylogenetic relations of fish-infecting lineages is mostly based on freshwater hosts. The taxonomic uncertainty of some apicomplexan groups, such as the coccidia, is high and many genera were recently shown to be paraphyletic, questioning the value of strict morphological and ecological traits for parasite classification. Here, we surveyed the genetic diversity of the Apicomplexa in several commercially valuable vertebrates from the North-East Atlantic, including farmed fish...
January 25, 2018: Parasites & Vectors
Radka Lukášová, Ali Halajian, Eva Bártová, Kateřina Kobédová, Lourens H Swanepoel, M Justin O'Riain
  Relatively little is known about protozoan parasites in African animals. Here we investigated the occurrence of protozoan parasites in mammals from South Africa. Oocysts of protozoan parasites were detected in 13 of 56 (23%) fecal samples using conventional microscopic examination methods. Cryptosporidium spp. and Isospora spp. were detected in eight (14 %) and five (9 %) samples, respectively. Mixed parasitic infection of Cryptosporidium spp. and Isospora spp. was recorded in banded mongoose ( Mungos mungo)...
January 25, 2018: Journal of Wildlife Diseases
Ze-Dong Wang, Quan Liu, Huan-Huan Liu, Shuang Li, Li Zhang, Yong-Kun Zhao, Xing-Quan Zhu
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...
January 9, 2018: Parasites & Vectors
I Symeonidou, A Ι Gelasakis, K V Arsenopoulos, R Schaper, E Papadopoulos
Gastrointestinal parasites, protozoa and helminths, remain a common important finding in dogs presented to veterinary medical practices. Moreover, dogs may play an active role in the transmission of enteric parasites to humans, given their cohabitation, making canine gastrointestinal parasitism an issue of major concern for public health. To get an overview of the current state of canine gastrointestinal parasites' prevalence in Greece, a total of 1036 faecal samples were collected from dogs either presented in veterinary clinics or in animal shelters...
December 15, 2017: Veterinary Parasitology
Seyed Ahmad Madani, Fatemeh Arabkhazaeli, Elyas Shakeri, Sedigheh Nabian
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 are scant. In this study isosporan oocysts isolated from common mynahs were morphologically and molecularly characterized. The medication efficiencies of diclazuril and sulfadiazine-trimethoprim in isosporiasis in naturally infected mynahs were evaluated...
November 8, 2017: Avian Pathology: Journal of the W.V.P.A
Khawla B N Al-Jassim, Yasser S Mahmmod, Zainab M Salem, Azmi Al-Jubury
The understanding of the epidemiology of canine parasitic infections is necessary for an efficient control program to minimize the risk of zoonotic transmission. The objectives of this study were (1) to determine the prevalence of canine gastrointestinal helminths and protozoa in Basra province, Southern Iraq, and (2) to identify the association of epidemiological characteristics (age, breed, gender, and feed type) of dogs with the parasitic infections. A total of 93 fecal samples, collected in the period from December 2014 to June 2015, were examined macroscopically and microscopically for the presence of worm eggs and protozoal oocysts, using centrifugal flotation method...
December 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
Patrícia Silva de Oliveira, Matheus Alexandre Ferreira, Lidiane Maria da Silva, Mariana Borges Rodrigues, Sergian Vianna Cardozo, Bruno Pereira Berto
Coccidia are protozoan parasites that are frequently observed in fecal samples from wild birds, and they are extremely important for biodiversity, host specificity and conservation. The aim of the present study was to identify and quantify the coccidian species from wild birds caught in a fragmented area of Atlantic Forest in the municipality of Guapimirim in the state of Rio de Janeiro, which is located around the Serra dos Órgãos National Park. A total of 101 birds were caught and identified. The highest prevalence and density were observed in the family Columbidae (Columbiformes)...
October 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
Mosun E Ogedengbe, Shiem El-Sherry, Joseph D Ogedengbe, H David Chapman, John R Barta
Partial mitochondrial (mt) cytochrome c oxidase subunit I (COI) and near-complete nuclear (nu) 18S rDNA sequences were obtained from various eimeriid coccidia infecting vertebrates. New and published sequences were used in phylogenetic reconstructions based on nu 18S rDNA, mt COI and concatenated sequence datasets. Bayesian analyses of nu 18S rDNA sequences used secondary structure-based alignments with a doublet nucleotide substitution model; the codon nucleotide substitution model was applied to COI sequences...
October 6, 2017: International Journal for Parasitology
Lucie Post, Cécile Garnaud, Danièle Maubon, Hervé Pelloux, Catherine Mansard, Annick Bosseray, Céline Dard
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. Diagnosis was made by microscopical detection of numerous C. belli oocysts in stools without specific staining. Treatment with TMP-SMZ slightly improved diarrhea within 3days, but dehydration subsequently led to acute decompensated heart failure and a fatal evolution...
October 6, 2017: Parasitology International
Mehdi Mohebali, Zabiholah Zarei, Khadijeh Khanaliha, Eshrat Beigom Kia, Afsaneh Motavalli-Haghi, Jaber Davoodi, Tahereh Rezaeian, Fathemeh Tarighi, Mostafa Rezaeian
BACKGROUND: Majority of parasitic infections in rodents have zoonotic importance. This study aimed to determine the frequency and intensity of intestinal protozoa infections of rodents including Meriones persicus, Mus musculus and, Cricetulus migratorius. METHODS: This survey was conducted in Meshkin Shahr district in northwestern Iran from Mar. to Dec. of 2014. Intestinal samples of 204 rodents including M. persicus (n=117), M. musculus (n=63) and C. migratorius (n=24) were parasitologically examined...
July 2017: Iranian Journal of Parasitology
Kumar Saurabh, Vijaya Lakshmi Nag, Saroj Dash, Anand Kumar Maurya, Vivek Hada, Richa Agrawal, Himanshu Narula, Anuradha Sharma
INTRODUCTION: Owing to the poor socioeconomic conditions and lack of sanitary hygiene, a large number of population in developing countries remain under constant threat of different parasitic infections causing severe morbidity and mortality. Enough measures to prevent and reduce the disease burden are still to be undertaken. AIM: Aim of the study was to determine the spectrum of parasitic infections in patients with complaints of diarrhoea and other gastrointestinal symptoms attending a tertiary care hospital in Western Rajasthan, India...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
Walter Basso, Hanna Marti, Monika Hilbe, Titus Sydler, Anina Stahel, Esther Bürgi, Xaver Sidler
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. In a Swiss pig herd (n=2 boars, 7 sows, 2 gilts, 18 finishing pigs, 30 fattening pigs, 54 suckling piglets), an outbreak of PCMV infection with high morbidity in all age categories, characterized by fever, anorexia, reduced general condition, respiratory signs and increased piglet mortality, was diagnosed by histopathology and molecular methods...
December 2017: Parasitology International
A Ros Die, J M Nogueira Coito
No abstract text is available yet for this article.
July 13, 2017: Clinical Microbiology and Infection
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