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WEDNESDAY, Oct. 1 (HealthDay News) -- The most pervasive global strain of HIV began spreading in humans around 1900 in sub-Saharan Africa, a new study claims.
The research, which is published in the current issue of Nature, found that HIV began spreading between 1884 and 1924, around the same time urban centers in west central Africa were established. This estimated time of origin is decades earlier than the previous estimate of 1930.