title: Toxoplasma gondii antibodies in woodchucks (Marmota monax) from Pennsylvania.
abstract: Serum samples from 545 woodchucks Marmota monax from 22 counties in Pennsylvania were examined for antibodies to Toxoplasma gondii by the modified direct agglutination test. Fifty-one woodchucks (9.4%) had antibodies to T. gondii, with 10% at dilutions of 1:25, 2% at dilutions of 1:50, and 4% at dilutions of 1:500. This is the first report of T. gondii antibodies in woodchucks.
authors.affiliation: Biology Department, Indiana University of Pennsylvania 15705.
authors.forename: R L
authors.initials: RL
authors.lastname: Stewart
authors.forename: J G
authors.initials: JG
authors.lastname: Humphreys
authors.forename: J P
authors.initials: JP
authors.lastname: Dubey
mesh_terms: D000372:Agglutination Tests / Q000662:veterinary; D000818:Animals; D000913:Antibodies, Protozoan / Q000097:blood*; D001800:Blood Specimen Collection / Q000662:veterinary; D005260:Female; D008297:Male; D008392:Marmota / Q000469:parasitology*; D010414:Pennsylvania / Q000453:epidemiology; D015995:Prevalence; D014122:Toxoplasma / Q000276:immunology*; D014124:Toxoplasmosis, Animal / Q000453:epidemiology*
chemical_list: D000913:Antibodies, Protozoan