Battling Infectious Diseases in the 20th Century: The Impact of Vaccines
The number of infected people, measured over 70-some years and across all 50 states and the District of Columbia, generally declined after vaccines were introduced.
Hasnain says:
These maps are so drastic.
“The number of infected people, measured over 70-some years and across all 50 states and the District of Columbia, generally declined after vaccines were introduced.
The heat maps below show number of cases per 100,000 people.”
Posted on 2024-11-16T05:36:22+0000