The Epoch Times
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March 21, 2022 Updated: March 22, 2022
Unlike other vaccines, influenza shots are administered yearly, yet offer generally lower protection than most routinely recommended vaccines, from as low as 10 percent to as high as 60 percent. This season’s flu jab was only 16 percent effective, according to the Centers for Disease Control and Prevention (CDC).
Scientists had hoped to develop a universal flu vaccine that could fight against many strains of the flu and be given every five or 10 years, eliminating the need for annual shots. They said it could take eight to 10 years for the universal flu vaccine to be available, but over a decade later, the research did not bear fruit.