Hey remember Truvada, that HIV drug that keeps negative folks from catching the virus? Turns out the $12,000-a-year drug isn’t winning over doctors, who don’t like the idea that HIV-negative men and women would be taking a drug that can cause kidney damage, among other things, just to stay negative. Especially when there’s a nearly full-proof way of staying negative: don’t share needles and always wear a condom! But that doesn’t mean This Week In STDs is all bad news for drugmakers: half of all men may be carrying HPV, the virus that can cause anal cancer (and cervical cancer in women). So let’s start really pushing Gardasil even harder.