History of Immunization in Timeline
Immunization is the process of strengthening the immune system against infectious agents. It involves exposing the body to foreign molecules (non-self) to trigger an immune response and develop immunological memory via the adaptive immune system. Active immunization involves controlled exposure to an immunogen, allowing the body to learn to protect itself, primarily enhancing T cells, B cells, and antibody production. Memory B and T cells ensure a rapid response upon subsequent encounters. Passive immunization involves directly introducing these immune elements into the body, rather than stimulating the body's own production.
1962: Vaccination Assistance Act
Since 1962 and the Vaccination Assistance Act, the United States as a whole has been moving towards the socially optimal outcome on a larger scale in regards to immunization.
1979: Polio Eliminated in the U.S.
In 1979, thanks to dedicated health care professionals and parents vaccinating children, polio was eliminated in the U.S.
1999: Mortality from influenza and pneumonia
From 1999 to 2018, African Americans died of influenza and pneumonia at higher rates than European Americans.
2018: Mortality from influenza and pneumonia
From 1999 to 2018, African Americans died of influenza and pneumonia at higher rates than European Americans.
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