I picked this book up with eager ... superseded by Jenner's work based on the hypothesis derived from widespread observation and first formulated in 1798 that cowpox infection protected against ...

Phipps suffered a fever, but no other symptoms. Edward Jenner had proved that persons inoculated with cowpox were immune to smallpox. Comments are closed for this object What's this? Most of the ...

Edward Jenner creates one of the world's first vaccines using the pus from a cowpox blister. Now hold your arm out, this won't hurt at all!