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.

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

The flu can definitely set you up for bacterial pneumonias.

When you're in the womb, you're in a sterile environment. When you enter the birth canal and the world, you're not. Very quickly, you have, living on the surface of your body, trillions of bacteria, literally trillion.

Your child can die from chickenpox.

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