Abstract
With recent implementation of studies specifically designed to empirically assess the contribution of both sexual and blood-borne exposures to local HIV transmission in sub-Saharan Africa, and with the arrival of a new generation of investigators, a picture of HIV transmission routes of improved validity is emerging. Seven years ago the International Journal of STD & AIDS (IJSA) began actively encouraging reexamination of the prevailing view that penile-vaginal sex was driving African HIV epidemics, welcoming debate via manuscript submission and presentation of fresh scientific evidence. Although the IJSA-published dissenting views have largely been ignored, dismissed or fiercely resisted by established HIV researchers and allied health agencies, new approaches may yet elicit more rational, evidence-based responses. Several such contributions appear in IJSA's present theme issue on aspects of HIV epidemiology in Africa. The focus on recent empiric data, rather than on modelling or speculation, no longer leaves reasonable doubt that sexual behaviours are insufficient to explain 'Why Africa?' It is fitting that this progress was encouraged, from beginning to end, by long-time, and now departing IJSA Editor-in-Chief, Dr Wallace Dinsmore.
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