[Ancient serological traces of infections by the human immunodeficiency virus HIV-1 and HIV-2 in sub-saharan Africa. A different geography]. / Traces sérologiques anciennes des infections par le virus de l'immunodéficience humaine VIH-1 et VIH-2 en Afrique Sud-Saharienne. Une géographie différente.

ABSTRACT

Despite of some heavy methodological limitations, the analysis of some serological data collected before 1985 allows to establish the selective regional distribution of the two infections. HIV-2 is prevalent in the West African sites which are studied and he has been observed since the sixties. The foci and the sporadic cases of the HIV-1 which are known are localized principally in the East-Central Africa. (Research done under the sponsorship of the A.N.R.S. (Paris)).