If you've had a cough that lasted weeks, a cough that just doesn't seem to go away, chances are it was pertussis.

Flu vaccine is far and away the most underutilized.

One bacterium has 2,000 to 6,000 proteins.

Physicians who care for adults generally don't think about vaccines as much as pediatricians do, and adults think of vaccines as a kid thing.

Pertussis is a disease that adolescents and adults give to children.

Vaccines are not traditionally big money makers. They're given once or a few times in one's life, so they're never going to be blockbusters.

People are reticent to give a newborn the hepatitis B vaccine and often delay it.