title: Vaccination with Babesia argentina in 5 beef herds in south-eastern Queensland.
abstract: Observations on the use of a vaccine containing Babesia argentina in 5 partly susceptible beef herds in south-eastern Queensland were made on 1,029 female breeding cattle over a period of 4 years. Groups averaging about 20 heifers were given 0, 1, 2 or 3 vaccinations. Incidence derived from groups experiencing clinical attacks were 17.9% for unvaccinated cattle and 1.2% for vaccinates. Increasing the number of vaccinations did not appear to increase protection. The one clinical manifestation of infection with B. bigemina was associated with a concurrent reaction to vaccination with Anaplasma centrale. There were no cases of haemolytic anaemia in new-born calves. No severe reactions followed primary vaccination, but 2 revaccinated animals became sick.
mesh_terms: D000712:Anaplasmosis / Q000453:epidemiology; D000743:Anemia, Hemolytic / Q000453:epidemiology / Q000662:veterinary; D000818:Animals; D001315:Australia; D001404:Babesiosis / Q000453:epidemiology / Q000517:prevention & control / Q000662:veterinary*; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology / Q000517:prevention & control*; D005260:Female; D014611:Vaccination / Q000009:adverse effects / Q000662:veterinary*