Secondhand smoke is the smoke you are exposed to when someone nearby is smoking. It includes the smoke exhaled by the smoker, and the smoke given off directly by the burning tobacco.

Transient tachypnea of the newborn is a mild breathing problem. It affects babies during the first hours of life. Transient means it is short-lived. Tachypnea means fast breathing rate. The problem usually goes away without treatment in ...

Tuberculosis (TB) is an ongoing (chronic) infection caused by bacteria. It usually infects the lungs. But the kidneys, spine, and brain may also be affected.