Vaccines against babesiosis using soluble parasite antigens |
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Authors: | Schetters T P Montenegro-James S |
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Affiliation: | Intervet International BV, Department of Parasitology, Postbus 31, 5830 AA Boxmeer, The Netherlands. a.vermeulen@intervet.akzonobel.nl |
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Abstract: | Babesiosis in cattle and dogs causes severe economical and emotional loss. Although effective chemotherapeutic treatment of infected animals is available, the prevention of babesiosis by vaccination would be preferable. Attenuated parasite lines of Babesia bovis have been used successfully to control tropical babesiosis in cattle. However, among other drawbacks associated with live vaccines, such vaccines bear the risk of variable infectivity and morbidity requiring veterinary surveillance. Soluble parasite antigens derived from different Babesia species have proven to induce immune responses that do not necessarily affect the parasite, per se, but reduce the manifestations of clinical disease upon infection. In this review, Theo Schetters and Sonia Montenegro-James present an overview of the results obtained with vaccines based on soluble parasite antigens and their characterization, and discuss the possible immune effector mechanisms of such vaccines. |
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