Question

Edward Jenner collects fluid from cowpox pustule and injects to a eights year old boy. Then he exposed the boy to Smallpox and the boy didn't get small pox. How do you appreciate the daring action of Edward Jenner ?​

Answer 1

Answer:

The origin of smallpox as a natural disease is lost in prehistory. It is believed to have appeared around 10,000 bc, at the time of the first agricultural settlements in northeastern Africa (3, 4). It seems plausible that it spread from there to India by means of ancient Egyptian merchants. The earliest evidence of skin lesions resembling those of smallpox is found on faces of mummies from the time of the 18th and 20th Egyptian Dynasties (1570–1085 bc). The mummified head of the Egyptian pharaoh Ramses V (died 1156 bc) bears evidence of the disease (5). At the same time, smallpox has been reported in ancient Asian cultures: smallpox was described as early as 1122 bc in China and is mentioned in ancient Sanskrit texts of India.