

![]() |
Many people were vaccinated against smallpox in the past. The vaccine is no longer given to the general public because the virus has been wiped out.
|
|
|
From about the tenth century in China, India, and the Americas, it was noted that individuals who had had even a mild case of smallpox could not be infected again. Fascinating accounts appear in writings from all over the world of ways in which p...
|