'During an epidemic of this disease in 1796, Edward Jenner discovered the power of vaccines & used it to save lives'
smallpox
SCIENCE: During an epidemic of this disease in 1796, Edward Jenner discovered the power of vaccines & used it to save lives
During an epidemic of this disease in 1796, Edward Jenner discovered the power of vaccines & used it to save lives
During an epidemic of this disease in 1796, Jenner discovered the power of vaccines & used it to save lives
SCIENCE
smallpox
SCIENCE