Seroprevalence of Toxocara canis in sheep in Wales.
Antibody levels to Toxocara canis L2 excretory/secretory antigens were examined by ELISA in 400 serum samples from sheep in Powys and Gwent, Wales. A positive OD value was set at the mean +/-3S.D. of 45 control samples. Seroprevalence increased with age. Seven percent and 13% of 6-month-old sheep showed positive OD values as did 16% of 10-month-old, 27% and 31% of 15-month-old and 47% of cull ewes. Analysis of variance showed a significant increase in ELISA OD values among the seropositive sheep with increasing age of sheep.
Lloyd
Sheelagh
S
Department of Veterinary Medicine, University of Cambridge, Madingley Rd., Cambridge, UK. ss11000@hermes.cam.ac.uk
D000367:Age Factors; D000704:Analysis of Variance; D000818:Animals; D000909:Antibodies, Helminth / Q000097:blood*; D000947:Antigens, Helminth / Q000276:immunology; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D016036:Seroepidemiologic Studies; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D017166:Toxocara canis / Q000276:immunology*; D014120:Toxocariasis / Q000453:epidemiology*; D014852:Wales / Q000453:epidemiology
D000909:Antibodies, Helminth; D000947:Antigens, Helminth