Since English physician Edward Jenner first inoculated a 13-year-old boy with cowpox (or the vaccinia virus) in 1796 and the subsequent development of the first smallpox vaccine a couple of years later, a number of vaccines have been created to prevent disease such as typhoid fever, tuberculosis, and polio that could have previously proven dangerous or fatal. According to the World Health Organization, immunization currently prevents 2-3 million deaths each year. [1]…
Medicine Religion Science
31 January 2021