Jacobs M R, Mason P R
S Afr Med J. 1978 Apr 22;53(16):619-21.
An indirect fluorescent antibody survey of the prevalence of Toxoplasma antibodies was carried out on sera from 4 regions of Southern Africa (Natal, Eastern Cape, Western Cape, and South West Africa and Botswana). The overall prevalence of seropositivity at a titre of 1/16 or higher was 20% (of 3379 sera tested), the highest prevalence occurring in Blacks (34%) and Indians (33%) of Natal, and the lowest in San (Bushmen) (9%) and Whites (12%) of South West Africa and Botswana. Differences in prevalence in these areas, and between different ethnic groups, are discussed and compared with previous studies in Southern Africa. Climatic factors affecting prevalence and transmission are compared in relation to cyst and oöcyst survival. The marked differences in prevalence between the San (9%) and the Negroid Dama (27%), both inhabiting the arid Kalahari Desert, are discussed with reference to the lifestyles of these groups.
对来自南部非洲4个地区（纳塔尔、东开普、西开普以及西南非洲和博茨瓦纳）的血清进行了弓形虫抗体流行率的间接荧光抗体调查。在检测的3379份血清中，滴度为1/16或更高的血清阳性总体流行率为20%，其中纳塔尔的黑人（34%）和印度人（33%）流行率最高，西南非洲和博茨瓦纳的桑人（布须曼人）（9%）和白人（12%）流行率最低。讨论了这些地区以及不同种族群体之间流行率的差异，并与南部非洲先前的研究进行了比较。结合包囊和卵囊的存活情况，比较了影响流行率和传播的气候因素。参照这些群体的生活方式，讨论了居住在干旱的卡拉哈里沙漠的桑人（9%）和黑人达马人（27%）之间流行率的显著差异。
