标签：Smallpox - 英国华人论坛

In 2004, all American people who wanted it were able to get the small pox vaccination. Because the vaccine was discontinued in 1972, researchers have only historical records to study concerning the number of people who may be affected, but i...英国华人论坛

Due to ulcerations of the cornea, many survivors of the smallpox virus are left in one or both of their eyes. Often times they will also have constant skin scarring. Over the 20th century the smallpox virus was responsible for an estimated 2...英国华人论坛