Clinical and serological evidence of bovine babesiosis and anaplasmosis in St. Lucia
1982
Abstract One hundred fifty-nine Holstein calves were imported into St. Lucia from the U.S.A. An outbreak of babesiosis occurred 17 days post-arrival, and an outbreak of anaplasmosis occurred 5 months after importation. Sera obtained 3, 6 and 12 months post-importation revealed a high prevalence of IFA titres to Babesia bovis and B. bigemina 3 months after arrival and an increase in titres to Anaplasma marginale 6 months after arrival. Sera obtained arrives from native cattle from several places on the island indicated infection rates of 80, 65 and 64% with A. marginale, B. bigemina and B. bovis , respectively. The rapid card test only indicated a 25% prevalence of infection of native cattle by A. marginale . This low prevalence was probably due to deterioration of serological activity during shipment.
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