Cass Mann is one of the world's longest-term HIV-positive diagnosed gay men, now in his third decade of living with HIV, and the founder of UK’s only gay men’s HIV/AIDS charity Positively Healthy, which provides HIV services including education, support, and peer counselling. Here he talks about why HIV is still dangerous, and safer sex is still vital, even in the age of antiretroviral medications (ARV) and highly active antiretroviral therapy (HAART). Today, HIV positive people are treated with a combination of multiple drugs. This requires finding a combination that will treat that patient's strain(s) of HIV and that they can tolerate. ARV/HAART can have serious side effects. In many cases, people can't tolerate a drug's side effects, so they can't take that drug. Sometimes, people are unable to take any drugs and die as a result. Many strains of HIV are resistant to one or more drugs. For more information, visit http://www.posh-uk.org.uk/ and http://www.AIDSvideos.org/.