In 1855, Massachusetts became the first state to mandate smallpox vaccination for children enrolled in public schools. By the early 1900s, several states had adopted similar policies. Given the ...
Orthopoxvirus: Genus of DNA viruses that includes variola (smallpox), monkeypox, cowpox, and vaccinia. Progressive vaccinia: Progressive necrosis of the primary vaccination site with spread of ...
Twelve new mpox vaccination sites have opened across England. Mpox is caused by a virus in the same family as smallpox, although it is usually much less harmful. Previously, vaccines were available ...
In the 1990s, hepatitis B and varicella (chicken pox) vaccines were added, and the polio vaccine shot (IPV) replaced the oral polio vaccine. Then, in 2000, the pneumococcal conjugate vaccine (PCV ...