Get ready for booster mandates. Millions of US workers are already required to show proof of a Covid vaccine to their employer. Soon many could be forced to show proof that they also got a booster shot. With the rise of the Omicron variant of Covid-19, public health officials are stressing that a booster shot is more important than ever.
Many who got their initial vaccine dose or doses more than six months ago could have limited protection against the easily transmissible Omicron. A booster dose is believed to provide important protections against it. "Omicron has turned this undoubtedly into a three-dose vaccine, if it wasn't heading that way already," Andy Slavitt, a former senior pandemic adviser to President Joe Biden, told CNN last week. "Two doses just aren't going to be sufficient any longer.