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Offering men who have sex with men antiretroviral therapy as pre-exposure prophylaxis (PrEP) is necessary if the UK is to achieve a marked reduction in the annual rate of HIV infections by the end of 2020. Pictured, a man holds up a PrEP (Truvada) pill

Pre-exposure prophylaxis with antiretroviral therapy could prevent a large number of new HIV infections if other key strategies including HIV testing are simultaneously expanded and improved, say researchers

Source  Directphoto Collection / Alamy Stock Photo