Here's what tuberculosis is, how it's transmitted and how you can expect to have it treated if it affects you or someone you ...

Heart disease maintains its ... research points to a surprising new contributor: human papillomavirus (HPV). This common sexually transmitted infection, estimated to affect 85% of unvaccinated ...

In 1997, avian influenza virus (H5N1) caused severe human disease in Hong Kong. One of 9 infected children and 5 of 9 infected adults died. Investigators hypothesized that this virus is lethal ...

"That heart ... infection will protect anyone against any type of cancer. On the contrary, there's an overall positive correlation between viral infections and cancer, Wald said, such as human ...