Past-workers on tick and tick-borne diseases in Southern Africa.
D000818:Animals; D001096:Arachnid Vectors; D002417:Cattle; D002418:Cattle Diseases / Q000266:history; D004463:Ecology; D006357:Heartwater Disease / Q000635:transmission; D049672:History, 19th Century; D049673:History, 20th Century; D010572:Pest Control, Biological; D012756:Sheep; D012757:Sheep Diseases / Q000266:history; D013019:South Africa; D013801:Theileriasis / Q000635:transmission; D013983:Tick Control / Q000266:history*; D013984:Tick Infestations / Q000266:history / Q000662:veterinary*; D013985:Tick Paralysis / Q000662:veterinary; D013986:Tick Toxicoses / Q000662:veterinary; D013987:Ticks / Q000145:classification / Q000254:growth & development