title: The inability of a South African Babesia bovis vaccine strain to infect Boophilus microplus.
abstract: 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 Babesia bigemina G strain with a South African strain of B. microplus was likewise unsuccessful. The epidemiological implication of these observations in terms of babesiosis control is discussed.
mesh_terms: D000818:Animals; D001096:Arachnid Vectors / Q000469:parasitology*; D001403:Babesia / Q000254:growth & development* / Q000472:pathogenicity; D001404:Babesiosis / Q000635:transmission; D002417:Cattle; D013987:Ticks / Q000469:parasitology*; D014612:Vaccines
chemical_list: D014612:Vaccines