when was the first flu vaccine developed?
Irwin asked:
I’m doing research on flu vaccines and I’m trying to find out when the first flu vaccine was created, but all of the articles talk about the swine flu. Also, did any children die during the time the seasonal flu vaccine was introduced?
Swine Flu Dangers What you Need to know to Stay Safe
The US military developed a vaccine after the Spanish flu pandemic in the 1940s.