The human papillomavirus (HPV) is linked to a number of cancers. And the Epstein Barr virus is associated with nasal cancer. It turns out these two viruses may have a mysterious association with yet another.

To use a condom or to not use a condom? For gay couples, the answer was different among different races.

One of the easiest ways to prevent more than five different kinds of cancers is to get vaccinated for HPV - but doctors may not be vaccinating boys as frequently as they should be.