research paper on polio vaccine

IMAGES

1. Position paper

   

2. Polio vaccines and polioviruses.

   

3. Polio Vaccine in Utah Newspapers, 1945-1965

   

4. Coronavirus: How vaccines are developed and tested

   

5. What to Know About Polio: Vaccines, Symptoms and How It Spreads

   

6. Tainted Cutter polio vaccine killed and paralyzed children in 1955