RSV is usually contagious for three to eight days. A patient also may be contagious a day or two before experiencing symptoms, the CDC said. Infants and those with weakened immune systems, however, ...

Trench Fever - The flu arrived in France. It found a pleasant home in the crowded wartime trenches, much to the dismay of the Allies who tried to keep the flu a secret. When it made its way to Madrid, ...

A bird-flu pandemic is far from inevitable. But health experts are closely monitoring an outbreak that could quickly escalate ...

In 1918, a strain of influenza known as Spanish flu caused a global pandemic, spreading rapidly and killing indiscriminately. Young, old, sick and otherwise-healthy people all became infected — at ...

Could the threat of another worldwide pandemic be on the way? On Jan. 6, the Centers for Disease Control and Prevention announced the first American, a man in Louisiana, had died from severe avian ...