'He worked on an anti-influenza vaccine in the 1940s which led to an inactivated polio vaccine in 1952'
Dr. Jonas Salk
MEDICINE: He worked on an anti-influenza vaccine in the 1940s which led to an inactivated polio vaccine in 1952
He worked on an anti-influenza vaccine in the 1940s which led to an inactivated polio vaccine in 1952
He worked on an anti-influenza vaccine in the 1940s which led to an inactivated polio vaccine in 1952
MEDICINE
Dr. Jonas Salk
MEDICINE