نتایج جستجو برای: cryptosporidium

تعداد نتایج: 4672  

Journal: :Environmental science & technology 2016
Scott A Bradford Hyunjung Kim Brendan Headd Saeed Torkzaban

The U.S. Environmental Protection Agency has recommended the use of aerobic spores as an indicator for Cryptosporidium oocysts when determining groundwater under the direct influence of surface water. Surface properties, interaction energies, transport, retention, and release behavior of B. subtilis spores were measured over a range of physicochemical conditions, and compared with reported info...

2017
Yaoyu Feng Lihua Xiao

Molecular epidemiology of cryptosporidiosis is an active research area in China. The use of genotyping and subtyping tools in prevalence studies has led to the identification of unique characteristics of Cryptosporidium infections in humans and animals. Human cryptosporidiosis in China is exemplified by the high diversity of Cryptosporidium spp. at species and subtype levels, with dominant C. h...

2015
Michele B. Parsons Dominic Travis Elizabeth V. Lonsdorf Iddi Lipende Dawn M. Anthony Roellig Shadrack Kamenya Hongwei Zhang Lihua Xiao Thomas R. Gillespie

Cryptosporidium is an important zoonotic parasite globally. Few studies have examined the ecology and epidemiology of this pathogen in rural tropical systems characterized by high rates of overlap among humans, domesticated animals, and wildlife. We investigated risk factors for Cryptosporidium infection and assessed cross-species transmission potential among people, non-human primates, and dom...

Journal: :Veterinary parasitology 2015
Heidi H Petersen Wang Jianmin Kiran K Katakam Helena Mejer Stig M Thamsborg Anders Dalsgaard Annette Olsen Heidi L Enemark

Although pigs are commonly infected with Cryptosporidium spp. and Giardia duodenalis, including potentially zoonotic species or genotypes, little is known about age-related infection levels, seasonal differences and genetic variation in naturally infected pigs raised in organic management systems. Therefore, the current study was conducted to assess seasonal and age-related variations in preval...

2014
Yosra Ahmed Helmy Abdelsamad Mohamed Jürgen Zentek Karl-Hans Zessin Reinhard Fries Hafez Mohamed Hafez

The zoonotic potential of Cryptosporidium was studied in one of the most densely populated provinces of Egypt regarding livestock and people. In a representative survey, faecal samples from cattle, buffalo and stool samples from diarrhoeic children (<10 years) were investigated. Parameters assumed to be related to cryptosporidiosis were recorded for animals and children. Animal samples (804) we...

Ali asghar Moghaddam, Mohammad Nouri,

Summary Cryptosporidiosis is a disease caused by the protozoan of the genus cryptosporidium and is characterized by gastroenteritis and respiratory symptoms in humans. In an investigation on 140 human faecal samples from urummie town of west Azarbyejan area, the role of cryptosporidium in causing diarrhea in adults and children has been demonstrated and the results discussed.

Journal: :East African medical journal 1989
B B Estambale C R Bwibo S Kang'ethe P M Chitayi

One hundred and thirty-three loose or diarrhoeic stool specimens from patients admitted at Kenyatta National Hospital were examined for cryptosporidiosis. Oocysts were detected in 5(3.8%) of the total in which Cryptosporidium was the sole pathogenic agent. In addition to Cryptosporidium, other pathogens isolated included bacteria, protozoa and helminths. We therefore report that Cryptosporidium...

Journal: :Acta tropica 2001
A Hassl G Benyr R Sommer

Oocysts of Cryptosporidium spp. were detected and differentiated by a modular arranged gene amplification procedure in various samples, mostly human stool, feces of herpetotaxa, and water, in different locations of South and Eastern Austria. Cryptosporidium parvum was found in stool samples of immunocompromised persons, in reptile feces, and in water samples. The presence of Cryptosporidium in ...

2017
Yadong Kong Ping Lu Tao Yuan Jinghui Niu Zhaoji Li Baisong Yang

Swimming in surface water bodies (e.g., lakes, rivers) can expose the human body to substantial risk of infection by Cryptosporidium. These findings are from a one-year investigation on the occurrence and distribution of the protozoan parasite Cryptosporidium in Yunlong Lake, Xuzhou, China. Cryptosporidium oocysts were detected by immunofluorescence microscopy. From January to November of 2015,...

2014
Khuanchai Koompapong Hirotake Mori Nipa Thammasonthijarern Rapeepun Prasertbun Ai-rada Pintong Supaluk Popruk Wichit Rojekittikhun Kittipong Chaisiri Yaowalark Sukthana Aongart Mahittikorn

Zoonotic Cryptosporidium spp., particularly C. meleagridis, C. canis, and C. felis, are enteric protozoa responsible for major public health concerns around the world. To determine the spread of this parasite in Thailand, we conducted molecular identification of Cryptosporidium spp. from animal samples around the country, by collecting and investigating the feces of seagulls (Chroicocephalus br...

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