Immune activation is a dominant factor in the pathogenesis of African AIDS

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Abstract

The AIDS epidemic in Africa is very different from the epidemic in the West. As suggested here by Zvi Bentwich, Alexander Kalinkovich and Ziva Weisman, this appears to be primarily a consequence of the over-activation of the immune system in the African population, owing to the extremely high prevalence of infections, particularly helminthic, in Africa. Such activation shifts the cytokine balance towards a T helper 0/2 (Th0/2)-type response, which makes the host more susceptible to infection with human immunodeficiency virus (HIV) and less able to cope with it.

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    Zvi Bentwich, Alexander Kalinkovich and Ziva Weisman are at the R. Ben-Art Institute of Clinical Immunology, Kaplan Hospital, Hebrew University Hadassah Medical School, Rehovot 76100, Israel.

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