Pertussis is a respiratory infection caused by bacteria called Bordatella pertussis.…

West Nile virus (WNV) is a virus carried by mosquitoes. Most people infected with the…

Streptococcal pneumonia (formerly called pneumococcal pneumonia) is an infection and…

Stomach flu is a viral infection that affects the stomach and small intestine. It is…

These are symptoms of an upper respiratory tract infection. Most of these infections…

The head louse is an insect that lives and breeds on your head. Head lice feed…

The Pap test (sometimes called a Pap smear) is a way to look at cells taken from…

Influenza (flu) is a viral infection of the nose, throat, trachea, and bronchi that…

RSV or respiratory syncytial virus is the major respiratory pathogen in young…

Your child has croup, which is caused by a virus that triggers swelling of the…