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South Africa has the largest number of HIV-infected people on the planet. In a widely welcomed speech to mark World Aids Day, South Africa’s president, Jacob Zuma, pledged a new beginning. The World’s Jason Margolis has the story. Download MP3
In this audio slideshow from BBC News, you can see the subtle and shocking ways that health campaigners have used images to raise HIV/AIDS awareness across the world. The posters use various methods, from humorous to blunt messages, to convey to observers why the message remains so important more than two decades after the virus was discovered.