Comparisons of serotests with calf inoculations for detection of carriers in anaplasmosis- vaccinated cattle.
Fifteen months after discontinuing vaccination for anaplasmosis in a herd of 131 cattle, 126 of the animals were reactive to the complement-fixation or card-agglutination tests. Inoculation of splenectomized calves proved that 9 animals were carriers and 117 animals were free of anaplasmosis. Anaplasmosis vaccination induced titers detectable by the standard serotests that persisted for at least 15 months.
D000372:Agglutination Tests; D000712:Anaplasmosis / Q000175:diagnosis* / Q000382:microbiology; D000818:Animals; D002353:Carrier State / Q000175:diagnosis / Q000382:microbiology / Q000662:veterinary*; D002417:Cattle / Q000382:microbiology*; D002418:Cattle Diseases / Q000175:diagnosis* / Q000382:microbiology; D003168:Complement Fixation Tests; D005260:Female; D008297:Male; D014611:Vaccination / Q000662:veterinary*