Data on the number of cases for these diseases from the pre-vaccine era is hard to come by, and even the case counts are ...

Twenty-six children became a part of the campaign. Four boys died. And more than 100,000 people in New Spain were immunized ...

Vaccines against smallpox and chickenpox are other examples of such live ... according to the CDC. Most children get their ...

In fact, in 1972, smallpox vaccines ceased to be a part of routine vaccinations. Up until the early ’70s, though, all children were vaccinated against smallpox, and the vaccinations left behind ...

Under the new leadership of Robert F. Kennedy Jr., the CDC is expected to look into a long-debunked connection between ...

Not so with smallpox. To create this vaccine, you begin with another virus that is similar to the smallpox virus, yet different enough not to bring on the smallpox disease once it enters your body.

Smallpox is caused by the variola virus ... there is a big impact on future generations when fewer children are born because parents are afraid of the virus.

Smallpox, one of the biggest killers in history, is caused by a virus called variola. Variola causes a distinctive rash and is often lethal. The name variola comes from the Latin word for “spotted” ...