The best way to beat cancer is to prevent it from occurring in the first place, when possible. With head and neck cancers, there are several ways to reduce risk.

While there is no cure for hepatitis B, doctors can treat infected patients to prevent serious complications. But first, these doctors need to know who is infected, which is why experts recently updated screening guidelines for hepatitis B.

Once the HIV virus becomes resistant to a drug, that resistance is permanent. Drug resistance in HIV-infected children makes finding an effective treatment more difficult.

Humans are teeming with viruses and bacteria, both good and bad. It seems one such invader — the human papillomavirus (HPV) — may be infecting many of us.

People at high risk for developing HIV can now take a medication to help prevent the disease. But to get the greatest protection from this medication, strict conditions must be followed.

HPV is perhaps most notorious for its link to cervical cancer, but it can also contribute to some kinds of oral cancer. A new study explored the spread of these conditions among partners.

Vaccinations can offer protection that prevents disease and saves lives. For HIV-infected patients, this protection may not last as long.

HIV patients can live longer, healthier lives today and one recent study took a look at their risk for a disease usually associated with growing older.

With emerging viruses like bird flu and MERS in the news, many Americans may not give much thought to hepatitis C. But new research shows the illness still affects millions in the US.

HIV and mental illness are two chronic conditions that can carry similar health and economic burdens. However, treatment and care for both are rarely integrated.