USA HISTORY

Detailed explanation-1: -Jenner, a country physician, invented vaccination with cowpox to replace the fearful dangers of inoculation with smallpox. This development resulted in immunity to smallpox and ushered in the era of preventive measures for contagious diseases (World Health News. May 1980).

Detailed explanation-2: -1796. Dr. Edward Jenner finds that vaccination with the cowpox virus can protect a person from smallpox infection and creates a smallpox vaccine. He publishes his findings in 1798.

Detailed explanation-3: -The smallpox vaccine, introduced by Edward Jenner in 1796, was the first successful vaccine to be developed. He observed that milkmaids who previously had caught cowpox did not catch smallpox and showed that inoculated vaccinia protected against inoculated variola virus.

Detailed explanation-4: -Edward Jenner, FRS FRCPE (17 May 1749 – 26 January 1823) was an English physician and scientist who pioneered the concept of vaccines, and created the smallpox vaccine, the world’s first vaccine.