Roseola is a highly contagious virus that many infants under three years old can catch, but is most common in infants under age one. Roseola is generally a non-eventful childhood illness. Once it

Croup is an infection caused by a virus that causes the trachea (windpipe) and larynx (voice box) to swell. It is usually part of a cold. Croup causes a fever, hoarseness and a

Influenza, commonly called the flu, is an infection of the respiratory tract caused by the influenza virus. Signs of the flu include sudden onset of headache, chills, and feeling generally miserable. Respiratory symptoms