Abstract
The seroprevalence of Anaplasma antibodies in wildlife (eland, blue wildebeest, kongoni, impala, Thomson's gazelle, Grant's gazelle, giraffe and plains zebra) and domestic animal (cattle, sheep and goat) populations was studied in wildlife/livestock interface areas of Kenya. Serum samples were analyzed by competitive inhibition enzyme-linked immunosorbent assay (CI-ELISA), using a recombinant antigen (MSP-5) from Anaplasma marginale surface membrane. A monoclonal antibody, FC-16, was used as the primary antibody, while anti-mouse conjugated to horseradish peroxidase was used as the secondary antibody. The results indicate a high seroprevalence in both wildlife and livestock populations, in contrast to earlier reports from Kenya, which indicated a low seroprevalence. The differences are attributed to the accurate analytical method used (CI-ELISA), as compared with agglutination techniques, clinical signs and microscopy employed by the earlier workers.
Highlights
Anaplasmosis is an infectious rickettsial disease caused by Anaplasma marginale and Anaplasma centrale in cattle and Anaplasma ovis in sheep and goats (Theiler 1910, 1911; Lestoquard 1924)
Anaplasma antibodies in wildlife and domestic species in wildlife-livestock interface areas of Kenya is common in Africa, the Middle East, southern Europe, the Far East, Central and South America and the United States of America (Soulsby 1982)
A high seroprevalence of Anaplasma antibodies was found in all species investigated (Table 1)
Summary
Anaplasmosis is an infectious rickettsial disease caused by Anaplasma marginale and Anaplasma centrale in cattle and Anaplasma ovis in sheep and goats (Theiler 1910, 1911; Lestoquard 1924). Anaplasma antibodies in wildlife and domestic species in wildlife-livestock interface areas of Kenya is common in Africa, the Middle East, southern Europe, the Far East, Central and South America and the United States of America (Soulsby 1982). Both natural and experimental, as well as occurrence of Anaplasma antibodies in wildlife have been reported world-wide (Kuttler 1984).
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