نتایج جستجو برای: cryptosporidium

تعداد نتایج: 4672  

2017
Yosra A. Helmy Jürgen Krücken El-Sayed M. Abdelwhab Georg von Samson-Himmelstjerna Hafez M Hafez

A total of 256 fecal specimens were randomly collected from farmed poultry in Germany and screened for the presence of Cryptosporidium spp. by PCR and further characterized by direct automated DNA sequencing. Using a nested PCR amplifying approximately 830 bp 18S rDNA fragment, 7.03% (n = 18) of the samples were Cryptosporidium-positive. In detail, Cryptosporidium was detected in 9.3% (8/86) of...

Journal: :Clinics 2006
Elenice Messias do Nascimento Gonçalves Alexandre J da Silva Maria Bernadete de Paula Eduardo Iaiko Horroiva Uemura Iaci N S Moura Vera L Pagliusi Castilho Carlos Eduardo Pereira Corbett

UNLABELLED A number of species of Cryptosporidium are associated with diarrhea worldwide. Little data exists regarding the genotypes and species of Cryptosporidium associated with cases of infections in Brazil. PURPOSE In the present study, we ascertained by molecular methods the species and the genotype of Cryptosporidium sp from a diarrhea outbreak diagnosed in a day care at the Hospital Cl...

Journal: :Experimental parasitology 2010
Nawal Hijjawi Josephine Ng Rongchang Yang Manar F M Atoum Una Ryan

Little is known about the epidemiology of Cryptosporidium in Jordan and no genotyping studies have been conducted on Cryptosporidium isolates from humans or animals from Jordan. Genotyping of 44 Cryptosporidium isolates from Jordanian children at the 18S rRNA locus and a unique diagnostic locus identified four Cryptosporidium species; C. parvum (22), C. hominis (20), C. meleagridis (1) and C. c...

2015
Amimul M. Ehsan Thomas Geurden Stijn Casaert Sonia M. Parvin Taohidul M. Islam Uddin M. Ahmed Bruno Levecke Jozef Vercruysse Edwin Claerebout

Giardia and Cryptosporidium are important causes of diarrhoea in Bangladesh. The high prevalence of both parasites in humans and cattle in rural Bangladesh and the common use of water ponds by village inhabitants and their animals suggest a potential for zoonotic transmission. Direct transmission of Giardia and Cryptosporidium between cattle and their handlers and indirect transmission through ...

Journal: :Applied and environmental microbiology 2004
Ling Zhou Ronald Fayer James M Trout Una M Ryan Frank W Schaefer Lihua Xiao

Of 471 specimens examined from foxes, raccoons, muskrats, otters, and beavers living in wetlands adjacent to the Chesapeake Bay, 36 were positive for five types of Cryptosporidium, including the C. canis dog and fox genotypes, Cryptosporidium muskrat genotypes I and II, and Cryptosporidium skunk genotype. Thus, fur-bearing mammals in watersheds excreted host-adapted Cryptosporidium oocysts that...

Journal: :The Journal of parasitology 2004
U M Ryan P Monis H L Enemark I Sulaiman B Samarasinghe C Read R Buddle I Robertson L Zhou R C A Thompson L Xiao

Molecular and biological characteristics of a new species of Cryptosporidium from the feces of pigs (Sus scrofa) is described. Oocysts are structurally indistinguishable from those of Cryptosporidium parvum; they are passed fully sporulated, lack sporocysts, and measure 4.9-4.4 microm (mean = 4.6 microm) x 4.0-4.3 microm (mean = 4.2 microm); length to width ratio 1.1 (n = 50). Cryptosporidium s...

ژورنال: پژوهش در پزشکی 2008
کاظمی دمنه, بهرام, تحویلدار بیدرونی, فرید, دلیمی‌اصل, عبدالحسین,

Background: Cryptosporidiosis is prevalent in animals and human beings, both immuno-competent and immuno-compromised persons, worldwide. Epidemiologically, it is important to differentiate between human and animal species. The aim of this study is to define the utility of a 1055 bp fragment of 18s rRNA for differentiation of Human and Cattle Cryptosporidiosis. Material and methods: 1020 human...

Journal: :Veterinary parasitology 2004
Mónica Santín James M Trout Lihua Xiao Ling Zhou Ellis Greiner Ronald Fayer

Fifteen dairy farms in seven states on the east coast of the US were each visited on two consecutive years to determinate the prevalence of Cryptosporidium species in pre-weaned (5 days to 2 months) and post-weaned calves (3-11 months), respectively. After each of 971 fecal specimens collected directly from each calf was sieved and subjected to density gradient centrifugation to remove debris a...

2013
I. H. T. Al-Karkhi A. I. Ibrahim A. K. Yaseen

Cryptosporidiosis is a clinical disease, usually presenting as a gastro-enteritis-like syndrome, caused by infection with protozoan parasites of the Apicomplexan genus Cryptosporidium. Disease ranges in seriousness from mild to severe and signs and symptoms depend on the site of infection and nutritional and immune status of the host Cryptosporidium in vitro was first achieved in endodermal cel...

2014
Lengmei Wang Xue Xue Jianqiu Li Qianjin Zhou Yingchao Yu Aifang Du

Cryptosporidium is one of the most important parasites in poultry, and this pathogen can infect more than 30 avian species. The present study investigated the infection rate of Cryptosporidium among broiler chicken flocks. A total of 385 fecal samples from broiler chickens in 7 regions of Zhejiang Province collected from November 2010 to January 2012 were examined by microscopy. Thirty-eight (1...

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