Ironically,there is much evidence to show that teachers could have excellent immune systems by interacting with students. Kids are around many other people form old to young. This is how immune systems work. And, how herd immunity which will solve the flu problem long before any phony vaccination will ever work.
But the teaches unions have paid their 20 million to get dems elected. They know that have a choke hold on the CDC and much of govt. and they aren't afraid to use it.
I expect Biden to reduce testing and to change the rules on Covid deaths. Since Biden took office, 175,000 of the 590,000 Covid "deaths" have happened on his watch. The number will only grow. Although his handling of Covid has given him his highest marks from the public, it will turn into a liability the longer it goes on.