Who developed the polio vaccine? User: What was the last year for a documented case of polio in the United States?



3 years ago Comment

Well Dr.Jonas Salk Developed the polio vaccine 
1979 was the last year for the polio documenter

So the first one is Dr.Jonas Salk
The second one is 1979

~Hope it helps if it does hit that tnx button plz :D