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.

Flu vaccine is far and away the most underutilized.

I've never seen this level of anger at parents who've chosen not to vaccinate their children.

What really reinvigorated vaccines was Prevnar, the pneumococcal vaccine that prevents against meningitis and ear infections. Here was the first vaccine to cross the billion-dollar mark.

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

The flu can definitely set you up for bacterial pneumonias.