NURSING ANM AND GNM

Detailed explanation-1: -Not long afterwards, in the early 1950s, the first successful vaccine was created by US physician Jonas Salk. Salk tested his experimental killed-virus vaccine on himself and his family in 1953, and a year later on 1.6 million children in Canada, Finland and the USA.

Detailed explanation-2: -Jonas Salk announces polio vaccine. On March 26, 1953, American medical researcher Dr. Jonas Salk announces on a national radio show that he has successfully tested a vaccine against poliomyelitis, the virus that causes the crippling disease of polio.

Detailed explanation-3: -Contrary to the era’s prevailing scientific opinion, Salk believed his vaccine, composed of “killed” polio virus, could immunize without risk of infecting the patient. Salk administered the vaccine to volunteers who had not had polio, including himself, his lab scientist, his wife and their children.

Detailed explanation-4: -The foundation allowed itself to go into debt to finance the final research required to develop the Salk vaccine. Salk worked incessantly for two-and-a-half years. Salk’s inactivated polio vaccine came into use in 1955. It is on the World Health Organization’s List of Essential Medicines.