AIDS Researchers Look to Africa for New Insights

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Science  11 Feb 2000:
Vol. 287, Issue 5455, pp. 942-943
DOI: 10.1126/science.287.5455.942

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SAN FRANCISCO, CALIFORNIA-- As HIV infection rates have plateaued in most developed countries, investigators are increasingly turning to Africa, where the epidemic is still exploding. And as the geographic focus shifts, so do the research questions; one puzzling question is why HIV infection rates are so much higher in some African populations than in others. Researchers are coming up with some surprising answers that, if borne out, might well force a rethinking of strategies for prevention and for developing vaccines.