HIV won't go down without a fight. Even as calls for the “end of AIDS” become stronger and more optimistic, scientists have found that HIV drug resistance is rising in Africa.

A hip or knee replacement may rid you of your arthritis pain. But you may also run the risk of infection after surgery.

Many people are prescribed antibiotics for acute respiratory infections, such as the common cold. But are the antibiotics prescribed doing more harm than good? 

A key to slowing down the spread of HIV is to track the rate of transmission among various subgroups of sexually active individuals. Recent news about one group is sobering.

Women who are HIV-positive have a high risk of developing cervical cancer. For this reason, these women are advised to go through frequent screenings - which often reveal nothing.

Tweets about vaccines tend to carry strong opinions in 140 characters. If you follow a Twitter user who is against vaccination, what's the chance that you or your family won't get shots?

You might hope that teens have learned something over the past decade. Turns out that when it comes to safe sex, not much has changed – teens are still putting themselves at risk for HIV.

Pegylated interferon-a drugs used to manage hepatitis C can cause major depression. Preventative use of the antidepressant, escitalopram or Lexapro, may be the solution for some patients.

Every year, thousands of Americans come down with the flu. If you have a condition like rheumatoid arthritis, you may be more likely to get the flu.

Is a Red Bull and vodka or a Jager Bomb one of your standard bar drinks for a night on the town? Then you may be more likely to wake up beside a one night stand the next morning.