For the first time, scientists in Germany have begun testing a vaccine against HIV, the virus that causes AIDS, on humans, DW reported on Monday. The first phase of a clinical trial began on Monday at university hospitals in Hamburg and Bonn, where 50 healthy volunteers received injections of the vaccine. Participants don't run a risk of getting infected with the virus, according to Jan von Lunzen, who leads the team of scientists involved in the trial. Two Belgian hospitals also participate in the study. Should the vaccine prove to protect against infection, it will become available within seven to eight years. About 30 vaccines are currently being tested around the world.

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