Weilgama D J, Jorgensen W K, Dalgliesh R J, Navaratne M, Weerasinghe C
Department of Animal Production and Health, Veterinary Research Institute, Peradeniya, Sri Lanka.
Trop Anim Health Prod. 1989 May;21(2):141-5. doi: 10.1007/BF02236195.
A Sri Lankan strain of Babesia bovis (designated A strain) was isolated from larval ticks and prepared for use as vaccine by syringe-passage in 20 splenectomised calves followed by irradiation. The A strain and a vaccine strain of Babesia bovis (designated K strain) brought in frozen form from Australia were used to vaccinate 37 susceptible bulls imported from southern Australia. Rectal temperatures, packed cell volumes, parasitaemias and overt clinical signs were monitored for three weeks following vaccination. The results indicated that the A strain was slightly more virulent than the K strain but suitable for the vaccination of well-supervised cattle.
