June 06 2013 4:09 AM ET
View at BBC.co.uk
March 08 2013 3:03 PM ET
But those who use condoms 100% of the time can largely avoid the virus.
November 07 2012 4:00 AM ET
Gay men with HIV in New York City are being warned of a meningitis outbreak. Here's what you need to know, and how to stop yourself from getting sick.