ArticleApplied and environmental microbiology2008
Cryptosporidium source tracking in the Potomac River watershed.
Article in Applied and environmental microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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Who cites it
30 citing papers in PubMed.
- Infections and genetic diversity of Cryptosporidium spp. and Giardia spp. in small wild mammals on the Eastern Tibetan plateau: public health implications.BMC microbiology · 2025Article
- Detection ofMicroorganisms · 2022Review
- Molecular prevalence and characterization of Cryptosporidium in domestic free-range poultry in Anhui Province, China.Parasitology research · 2021Article
- Pathology of cryptosporidiosis in raccoons: case series and retrospective analysis, 1990-2019.Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2021Article
- Diverse Genotypes and Species ofMicroorganisms · 2021Article
- The first report of Cryptosporidium testudinis in Chinese alligators (Alligator sinensis) in China.Parasitology research · 2020Article
- Prevalence and Genotypes of Cryptosporidium in Wildlife Populations Co-Located in a Protected Watershed in the Pacific Northwest, 2013 to 2016.Microorganisms · 2020Article
- Occurrence of a Cryptosporidium xiaoi-like genotype in peafowl (Pavo cristatus) in China.Parasitology research · 2019Article
- Amplicon sequencing and imputed metagenomic analysis of waste soil and sediment microbiome reveals unique bacterial communities and their functional attributes.Environmental monitoring and assessment · 2019Article
- Prevalence, risk factors and molecular characterization of Cryptosporidium infection in cattle in Addis Ababa and its environs, Ethiopia.Veterinary parasitology, regional studies and reports · 2018Article
- The first report of Cryptosporidium spp. in Microtus fuscus (Qinghai vole) and Ochotona curzoniae (wild plateau pika) in the Qinghai-Tibetan Plateau area, China.Parasitology research · 2018Article
- Subtype analysis of zoonotic pathogen Cryptosporidium skunk genotype.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2017Article
- Human infective potential of Cryptosporidium spp., Giardia duodenalis and Enterocytozoon bieneusi in urban wastewater treatment plant effluents.Journal of water and health · 2016Article
- Public health significance of zoonoticInternational journal for parasitology. Parasites and wildlife · 2016Review
- Development and Evaluation of Three Real-Time PCR Assays for Genotyping and Source Tracking Cryptosporidium spp. in Water.Applied and environmental microbiology · 2015Article
- Highly divergent 18S rRNA gene paralogs in a Cryptosporidium genotype from eastern chipmunks (Tamias striatus).Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2015Article
- Occurrence, source, and human infection potential of Cryptosporidium and Enterocytozoon bieneusi in drinking source water in Shanghai, China, during a pig carcass disposal incident.Environmental science & technology · 2014Article
- Cryptosporidium andersoni as a novel predominant Cryptosporidium species in outpatients with diarrhea in Jiangsu Province, China.BMC infectious diseases · 2014Article
- Molecular Characterization of Cryptosporidium spp. Isolated From Immunocompromised Patients and Children.Jundishapur journal of microbiology · 2014Article
- Subtyping Cryptosporidium ubiquitum,a zoonotic pathogen emerging in humans.Emerging infectious diseases · 2014Article
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Authors and funding
13 authors.
Funding
Abstract
To better characterize Cryptosporidium in the Potomac River watershed, a PCR-based genotyping tool was used to analyze 64 base flow and 28 storm flow samples from five sites in the watershed. These sites included two water treatment plant intakes, as well as three upstream sites, each associated with a different type of land use. The uses, including urban wastewater, agricultural (cattle) wastewater, and wildlife, posed different risks in terms of the potential contribution of Cryptosporidium oocysts to the source water. Cryptosporidium was detected in 27 base flow water samples and 23 storm flow water samples. The most frequently detected species was C. andersoni (detected in 41 samples), while 14 other species or genotypes, almost all wildlife associated, were occasionally detected. The two common human-pathogenic species, C. hominis and C. parvum, were not detected. Although C. andersoni was common at all four sites influenced by agriculture, it was largely absent at the urban wastewater site. There were very few positive samples as determined by Environmental Protection Agency method 1623 at any site; only 8 of 90 samples analyzed (9%) were positive for Cryptosporidium as determined by microscopy. The genotyping results suggest that many of the Cryptosporidium oocysts in the water treatment plant source waters were from old calves and adult cattle and might not pose a significant risk to human health.
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