The head of the HA protein is the primary target of antibodies that confer protective immunity to influenza viruses. The underlying health status, age, and gene ...
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Mar 12, 2024 · All current U.S. flu vaccines protect against a flu A(H1) virus, a flu A(H3) virus, a flu B/Yamagata lineage virus and a flu B/Victoria lineage ...
Clinical studies have shown that inactivated vaccines have an efficacy, measured by reducing serologically confirmed influenza illnesses, of 70% in the age ...