title: The transstadial transmission of Babesia caballi by Rhipicephalus evertsi evertsi.
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%.
authors.affiliation: Veterinary Research Institute, Onderstepoort.
authors.forename: D T
authors.initials: DT
authors.lastname: de Waal
authors.forename: F T
authors.initials: FT
authors.lastname: Potgieter
mesh_terms: D000818:Animals; D001404:Babesiosis / Q000635:transmission*; D006734:Horse Diseases / Q000635:transmission*; D006736:Horses; D007303:Insect Vectors; D009758:Nymph; D010527:Perissodactyla; D011817:Rabbits; D013987:Ticks