Regular mucus tends to be thin and slippery, and it is generally a constant presence on a day-to-day basis. Meanwhile, phlegm ...

Serious conditions behind bloody cough symptoms revealed. Life-threatening diseases that cause alarming blood in cough ...

Fiancé couple Annie Suwan and David Toborowsky have been especially emotional as their infant daughter, Minthirarad, is ...

An Arizona resident has died from pneumonic plague, a severe lung infection caused by Yersinia pestis. The CDC warns that ...

Fear not, for the CDC also states that "Plague is infamous for killing millions of people in Europe during the Middle Ages.

Mucus, a fluid in your upper respiratory system, is usually clear. But a number of health conditions can cause it to turn brown. Also known as brown phlegm or sputum, brown mucus can be due to a ...

An Arizona resident died after contracting pneumonic plague, a rare but highly dangerous lung infection. The person did not ...

A rare respiratory illness known as pneumonic plague killed one Arizona resident. Know signs and symptoms and treatments to ...

A recent pneumonic plague death in Northern Arizona, the first since 2007, has raised concerns about this rare but deadly ...

Columnist Patrice Apodaca talks to a pediatric infectious diseases expert about why measles outbreaks among children are a ...