alexa [Pathogenic bacteria and parasites in wildlife and surface water].
Toxicology

Toxicology

Journal of Environmental & Analytical Toxicology

Author(s): Heuvelink AE, Zwartkruis JT, van Heerwaarden C, Arends B, Stortelder V,

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Abstract In the period October 2003 to August 2005, 897 faecal samples were collected from wild animals and examined for Salmonella spp., Campylobacter spp., and Shiga toxin producing Escherichia coli (STEC) O157, the prevalence of which was found to be 0.1\%, 13.8\%, and 0.5 \%, respectively. Campylobacter spp. were isolated mainly from faecal samples collected from corvidae (59.8\%), and meadow birds and waterfowl (22.4\%). A subset of these samples was also examined for Cryptosporidium and Giardia oocysts and cysts. None of the 247 samples examined contained C. parvum oocysts, and only 1 sample (roe faeces) contained G. lamblia assemblage A cysts. In the period September to November 2006, samples of running or still surface water were collected at 10 sites on 5 days, to investigate the presence of Salmonella spp., Campylobacter spp., and STEC O157. Twenty (40.8\%) of the surface water samples were positive for one or more bacterial pathogens. Seven (14.3\%) samples were positiveforSalmonella spp., 14 (28.6\%) samples were positive for Campylobacter spp., and 1 (2.0\%) sample was positivefor E. coli O157. Samples collected at only 2 of the 10 sites were negative for the pathogens tested; samples collected at the other 8 sites were positive for the pathogens at least once. To gain a better picture of the potential human health risk, this study should be followed up with a more quantitative study of the occurrence of human pathogens in wildlife, taking into account the different natural habitats and behaviour of the different animal populations and a possible seasonal effect. Furthermore, the contamination of surface water with human pathogens should be investigated more extensively.
This article was published in Tijdschr Diergeneeskd and referenced in Journal of Environmental & Analytical Toxicology

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