In the days of widespread vaccination, roughly one person in a million receiving the vaccine died.

Whether the effects are temporary or lifelong, widespread vaccination could have a substantial public health impact.

More widespread and effective vaccination of children would also be a boon for parents.

Rubella, otherwise known as German measles, was also very common before the advent of widespread vaccination.

Prior to widespread vaccination, the treatment at Hospital Rock was extremely important.

Despite widespread vaccination against chickenpox, many children still become infected.

A widespread preventive vaccination would also conceal the existence of the virus in a country.

Even if that assumption were false, experts say, a widespread vaccination could have serious unintended military repercussions.

However, this form is now rarely seen due to widespread vaccination of breeding dogs.

Before widespread vaccination, measles was so common during childhood that most people became sick with the disease by age 20.