GENETICALLY modified bacteria that release HIV-blocking proteins might prevent people who have unprotected sex from becoming infected by the virus.
A study published this week shows that the souped-up bugs help shut out the virus from human cells in the test tube. “We are working to try to bring this to the clinic as soon as possible,” says Peter Lee of Stanford University in California.
With an effective HIV vaccine many years away and condoms not always popular, interest is growing in microbicides, vaginal medications that can protect against infection (Â鶹´«Ã½, 8 February 2003, p 42). And as…
