Your annual flu shot protects you against the three strains of flu viruses expected to be common that year. But what if there was one vaccine that protect you against every type of flu?

Some antibiotics alter the normal population of bacteria that live in your gut, causing symptoms like diarrhea. Unfortunately in some patients with an immune system weakened by chemotherapy, the consequences can be worse.

It's no easy thing to treat cancer in a regular patient. But it's an even more difficult job when the patient has both cancer and HIV.

The vaccine recommended for boys and girls to prevent HPV, an infection that can cause cervical and other cancers, has been shown not to cause diabetes, lupus or similar diseases in young women.

Which would you rather do, give up some saliva or have blood taken? Good news for those of us who hate being pricked with needles: A saliva test can replace a blood test for HIV.

If you go to the grocery store and pick up a gallon of milk, it's likely been pasteurized to kill bacteria. But you can still go directly to a farm for a taste of raw milk.

Germs and sick coworkers may not be the only way to get sick in the office. Chemicals in the paint, furniture and carpet may be also causing you to get sick.

Hepatitis C is a serious condition that damages the liver and can be difficult to treat. Here's the latest on its treatment: A new university study says that a drug combo may be able to slow the disease’s growth.

Smoke inhalation can cause serious lung damage and even death. A new study has shown that the body responded unexpectedly to the damage caused by smoke inhalation.

People with bacteria in their urine may go on to develop an infection that needs drug treatment. Other people with the same bacteria will never become infected. Yet some doctors still treat these patients as if they were sick.