The transstadial transmission of Babesia caballi by Rhipicephalus evertsi evertsi |
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| Authors: | D T de Waal F T Potgieter |
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| Institution: | Veterinary Research Institute, Onderstepoort. |
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| Abstract: | Rhipicephalus evertsi evertsi larvae were fed on the ears of rabbits. Seven days after larval infestation, unfed, newly moulted nymphae were manually removed to infest a splenectomized donkey showing a patent Babesia caballi infection. Engorged nymphae were collected from the donkey and the ensuing adult ticks were placed on a susceptible horse. The horse contracted a B. caballi infection showing a prepatent period of 19 days after tick infestation. A very low parasitaemia, (highest score 2), which was patent for only 10 days, was recorded. The lowest packed cell volume recorded was 16%. |
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