Question

short note on small pox vaccine

Answer 1

Smallpox vaccine, the first successful vaccine to be developed, was introduced by Edward Jenner in 1796. He followed up his observation that milkmaids who had previously caughtcowpox did not later catch smallpox by showing that inoculated cowpoxprotected against inoculatedsmallpox

he tried his experiment on his son only

Answer 2

it contains the dead cell of small pox which heal us and destroy other harmful cell