History of Immunization in Timeline
Immunization fortifies the immune system against infectious agents. Exposure to foreign molecules (non-self) triggers an immune response and immunological memory within the adaptive immune system. Active immunization involves controlled exposure to an immunogen, enabling the body to learn to protect itself, primarily enhancing T cells, B cells, and antibody production. Memory B and T cells facilitate rapid responses to subsequent encounters. Passive immunization introduces these immune elements directly, bypassing the body's own production.
7 hours ago : Morrisey's Order Creates Confusion Over West Virginia Immunization Exemptions; Guidance Rescinded.
Morrisey's executive order regarding immunization exemptions sparked controversy in West Virginia. The vaccine mandate faced a mixed response, and the Department of Education briefly issued, then retracted, guidance. Confusion remains regarding state law.
1962: Vaccination Assistance Act
In 1962, the Vaccination Assistance Act was enacted in the United States, shifting immunization programs from local and state levels to a national scale, aiming to achieve socially optimal immunization rates through government subsidies.
1979: Polio Eliminated in the U.S.
In 1979, polio was eliminated in the U.S. due to vaccinations.
1999: Mortality Disparities Analysis
In 1999, analysis revealed that African Americans died of influenza and pneumonia at higher rates than European Americans.
2018: Mortality Disparities Analysis
In 2018, analysis revealed that African Americans died of influenza and pneumonia at higher rates than European Americans.
Mentioned in this timeline
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A vaccine is a biological preparation that provides active acquired...
Vaccination is the administration of a vaccine to stimulate the...
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