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 %.
