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The U.S. begins a childhood vaccination initiative to increase the number of vaccinated children in the country to 90% within two years. 2020. Show more ...
... U.S. and more than 20 million deaths worldwide. ... In response to the flu pandemic that happened from 1957 to 1958, the U.S. Public Health Service recommends flu ...
1948. In the U.S., the whooping cough (pertussis), diphtheria and tetanus vaccines are combined into one licensed vaccine called the diphtheria, tetanus toxoid ...
1969. The first rubella vaccine is licensed in the U.S. About 47,000 rubella cases occurred each year in the U.S. in the 20th century compared with six ...
These smallpox vaccinations are the first in the U.S.. 1855. Massachusetts is the first state to require that children have a smallpox vaccine before going to ...
1967. The first mumps vaccine is licensed by the U.S. Food and Drug Administration (FDA). Mumps had been a common cause of deafness. But the mumps vaccine ...
... U.S. in the 20th century compared with none in 2020. The first polio vaccine arrives at Mayo Clinic on April 13, 1955, one day after it's licensed in the U.S..
... U.S. in the 20th century compared with 13 cases in 2020. 1971. The measles ... The measles, mumps and rubella vaccines are combined into the measles-mumps-rubella ...
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