HIV subtype may explain sexual transmission

BMJ 1996; 312 doi: (Published 02 March 1996) Cite this as: BMJ 1996;312:530
  1. Luisa Dillner

    A subtype of HIV that spreads more easily in heterosexual than homosexual men or injecting drug misusers may explain different patterns of transmission of the disease worldwide. In Thailand, India, and sub-Saharan Africa about 90% of HIV-1 infections are acquired through heterosexual contact compared with 10% in the US and western Europe. So far scientists have identified nine subtypes of HIV-1 from A through to I. Subtypes A, C, and D predominate in Africa, E and B are common in Thailand, and C is the main type in India. In the US and western …

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