Mason, T.E.; Potgieter, F.T.; Van Rensburg, L.; Bigalke, R.D.
(Published by the Government Printer, Pretoria., 1986)
A strain of Babesia bovis that had been attenuated by rapid syringe passage through a series of 23 splenectomized calves was unable to infect its vector Boophilus microplus. An attempt to transmit the attenuated Australian ...