History of jonas salk's Salk-vaccine discovary
Jonas Salk, an American medical researcher, best known for his discovery and development of the first safe and effective polio vaccine. He was born on October 28, 1914 died on June 23, 1995.
Until 1955, when the Salk vaccine was introduced, polio was considered the most frightening public health problem of the postwar era. Annual epidemics kept getting worse and victims were usually children. By 1952 it was killing more of them than any other communicable disease, with over 300,000 cases and 58,000 deaths, mostly children.
In 1947, Salk accepted an appointment to the University of Pittsburgh School of Medicine. While working there, with the National Foundation for Infantile Paralysis, Salk saw an opportunity to develop a vaccine against polio, and devoted himself to this work for the next eight years.
On April 12, 1955, Dr. Thomas Francis, Jr., of the University of Michigan, the monitor of the test results, "declared the vaccine to be safe and effective." The announcement was made at the University of Michigan, exactly 10 years to the day after the death of President Roosevelt, the world's most famous polio victim.
The news of the discovery was made public on April 12, 1955, Salk was hailed as a "miracle worker," and the day almost became a national holiday.
The field tests Salk set up were the most elaborate program of its kind in history, involving 20,000 physicians and public health officers, 64,000 school personnel, and 220,000 volunteers.
Edward Jenner:English scientist Edward Jenner born on 17 May 1749 and died on 26 January 1823, is widely credited as the pioneer of smallpox vaccine, and is sometimes referred to as the 'Father of Immunology'. Jenner's discovery 'has saved more lives than the work of any other man'.
Until 1955, when the Salk vaccine was introduced, polio was considered the most frightening public health problem of the postwar era. Annual epidemics kept getting worse and victims were usually children. By 1952 it was killing more of them than any other communicable disease, with over 300,000 cases and 58,000 deaths, mostly children.
In 1947, Salk accepted an appointment to the University of Pittsburgh School of Medicine. While working there, with the National Foundation for Infantile Paralysis, Salk saw an opportunity to develop a vaccine against polio, and devoted himself to this work for the next eight years.
On April 12, 1955, Dr. Thomas Francis, Jr., of the University of Michigan, the monitor of the test results, "declared the vaccine to be safe and effective." The announcement was made at the University of Michigan, exactly 10 years to the day after the death of President Roosevelt, the world's most famous polio victim.
The news of the discovery was made public on April 12, 1955, Salk was hailed as a "miracle worker," and the day almost became a national holiday.
The field tests Salk set up were the most elaborate program of its kind in history, involving 20,000 physicians and public health officers, 64,000 school personnel, and 220,000 volunteers.
Edward Jenner:English scientist Edward Jenner born on 17 May 1749 and died on 26 January 1823, is widely credited as the pioneer of smallpox vaccine, and is sometimes referred to as the 'Father of Immunology'. Jenner's discovery 'has saved more lives than the work of any other man'.
0 comments:
Post a Comment