Polio vaccine
Smallpox vaccine
Penicillin
Antibiotics
Insulin
Correct answer is B
Edward Jenner developed the smallpox vaccine in 1796, the first successful vaccine.
What is the main objective of a constitution?...
How do you change the username of a Facebook Page?...
Which car manufacturer produces the "Leaf"?...
What is the meaning of disinvestment in the Indian economy?...
How do you delete a Twitter List?...
How do you add GIFs to an Instagram Story?...
Which part of the brain is responsible for speech production?...
Which ancient civilization built the pyramids?...