Crude extracts of Babesia bovis parasites were systematically fractionated and tested in numerous sequential vaccination/challenge experiments in adult cattle. A short fragment of the third antigen (21B4) has been shown to be protective (Wright et al., 1992).
References
Wright et al., 1992: Wright IG, Casu R, Commins MA, Dalrymple BP, Gale KR, Goodger BV, Riddles PW, Waltisbuhl DJ, Abetz I, Berrie DA. The development of a recombinant Babesia vaccine. Veterinary parasitology. 1992; 44(1-2); 3-13. [PubMed: 1441189].
