Don't just assume symptoms like nausea and vomiting are a stomach bug. It could also be this nightmare illness.

Dear Dr. Donohue • My daughter is scheduled to deliver her first baby in about two weeks. Her doctor told her she had to have a culture done to see if she is a carrier of Group B strep. What is this, ...

Strep infections are most well known for causing strep throat, which can be treated with antibiotics. But this type of bacteria can also cause more serious illnesses—even flesh-eating infections.

While both infections may cause a sore throat, unlike a cold, strep throat does not cause a cough and runny nose. Additionally, strep can cause tiny red spots on the roof of the mouth called petechiae ...