The molecular epidemiology of Cryptosporidium and Giardia infections in coyotes from Alberta, Canada, and observations on some cohabiting parasites.
Coyotes from southern Alberta and Saskatchewan, Canada, were examined for the presence of Giardia and Cryptosporidium and cohabiting helminths. Toxascaris was present in over 90% of the 70 animals examined, and Taenia sp. in 6.5-25% of the two groups of animals studied. Giardia (12.5-21.7%) and Cryptosporidium (0-17.4%) were also common and molecular characterisation revealed both zoonotic and host-adapted genotypes of Giardia, whereas the Cryptosporidium proved to be a variant of the canine species C. canis. The seasonal variation observed in the occurrence of Cryptosporidium may be related to stress-induced shedding of the parasite.
Thompson
R C Andrew
RC
World Health Organization Collaborating Centre for the Molecular Epidemiology of Parasitic Infections, School of Veterinary and Biomedical Sciences, Murdoch University, South Street, Murdoch, WA 6150, Australia. a.thompson@murdoch.edu.au
Colwell
Doug D
DD
Shury
Todd
T
Appelbee
Amber J
AJ
Read
Carolyn
C
Njiru
Zablon
Z
Olson
Merle E
ME
D000416:Alberta / Q000453:epidemiology; D000818:Animals; D046029:Coyotes; D003457:Cryptosporidiosis / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*; D003458:Cryptosporidium / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D005872:Giardia / Q000235:genetics; D005873:Giardiasis / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*; D017720:Molecular Epidemiology; D010273:Parasitic Diseases, Animal / Q000453:epidemiology / Q000469:parasitology*; D010802:Phylogeny
D004275:DNA, Ribosomal