Tonsillitis is an inflammatory disease that occurs when your tonsils become infected by a virus or bacteria.
Bacterial and viral meningitis cause the tissue around your brain and spinal cord to swell. Bacterial meningitis can cause brain…
Learn about the symptoms of and treatments for colds and the flu.
Learn why your child may get several infections while he or she is still young.
Learn about mumps and how it can be prevented.