Immunization of cattle against East Coast fever using Theileria parva (Marikebuni) and relaxation of tick control in North Rift, Kenya

A total of 90 animals was immunized against East Coast fever (ECF) using Theileria parva (Marikebuni) stock on three large-scale farms in Kiminini Division, Trans-Nzoia District, North Rift, Kenya. Another 90 cattle served as non-immunized controls. Following immunization the number of cattle with s...

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Published inOnderstepoort journal of veterinary research Vol. 68; no. 3; pp. 217 - 223
Main Authors Wanjohi, J M, Ngeranwa, J N, Rumberia, R M, Muraguri, G R, Mbogo, S K
Format Journal Article
LanguageEnglish
Published South Africa AOSIS (Pty) Ltd 01.09.2001
Subjects
Anaplasmosis - epidemiology
Anaplasmosis - prevention & control
Animals
Antibodies, Protozoan - blood
Babesiosis - epidemiology
Babesiosis - prevention & control
Babesiosis - veterinary
Cattle
Fluorescent Antibody Technique, Indirect - methods
Fluorescent Antibody Technique, Indirect - veterinary
Immunization - veterinary
Kenya - epidemiology
Random Allocation
Theileria parva - immunology
Theileriasis - epidemiology
Theileriasis - immunology
Theileriasis - prevention & control
Tick Control - methods
Tick Infestations - epidemiology
Tick Infestations - prevention & control
Tick Infestations - veterinary
Time Factors
Kenya
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Summary:A total of 90 animals was immunized against East Coast fever (ECF) using Theileria parva (Marikebuni) stock on three large-scale farms in Kiminini Division, Trans-Nzoia District, North Rift, Kenya. Another 90 cattle served as non-immunized controls. Following immunization the number of cattle with significant indirect fluorescent antibody (IFA) titres increased from 43.9% to 84.4% and 6.7% of the cattle developed clinical ECF reactions. Two months after immunization, the immunized and non-immunized cattle were divided into two groups one of which was dipped every 3 weeks and the other dipped when total full body tick counts reached 100. All the animals were monitored for 51 weeks for incidences of ECF and other tick-borne diseases. Twenty-four cases of ECF were diagnosed among the non-immunized cattle compared to four cases among the immunized cattle; a difference that was significant (P > 0.05). There was no significant difference in the incidences of babesiosis and anaplasmosis between the immunized and non-immunized cattle.
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ISSN:0030-2465
2219-0635