WHY IT’S NORMAL FOR COVID-19 VACCINE IMMUNITY TO WANE, AND HOW BOOSTER SHOTS CAN HELP

© Provided by Interaksyon Vaccines are the holy grails of disease prevention. These medical marvels confer significant protection against diseases — whether a childhood infection, annual influenza or a novel coronavirus — that can easily cause undue suffering. The polio vaccine prevents polio, a highly contagious viral childhood illness that causes nerve damage and can lead to paral...

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