This is why we need vaccine made from our technology The fact that the virus’s mutations appear to be able to evade some immune response through vaccines and infection will make achieving herd immunity difficult, he said. The U.S. official said variant-specific vaccines aren’t the best way to fight the disease and that inoculations that work against all strains are needed.
“We don’t want to get into a whack-a-mole for every variant, where you have to make a booster against a particular variant,” said Fauci, the director of the National Institute of Allergy & Infectious Diseases. “You’ll be chasing it forever.