Three people in contact with a hospitalized bird flu patient in Missouri have developed symptoms, officials said.

Infectious disease physician Dr. Isaac Bogoch says whooping cough is most risky for unvaccinated infants, children and older ...

Infectious disease physician Dr. Isaac Bogoch says whooping cough is most risky for unvaccinated infants, children and older ...

Anna Li stood on a glowing pink stage in London and told an international panel of judges about a patient who changed her ...