FactCheck.org Science Editor Jessica McDonald fielded questions about second COVID-19 booster shots and the possible return of Philadelphia’s mask mandate in a recent interview that aired on several of that city’s iHeartRadio stations.
A COVID-19 booster dose increases protection against the coronavirus. But in an interview, comedian Bill Maher incorrectly said COVID-19 booster shots were “useless” and could cause “immune system fatigue.” Online, others have made similar claims. There is no basis for the notion that the immune system would tire out, even after repeated boosters.
TV actress Betty White passed away at age 99 on Dec. 31. Following her passing, various falsehoods appeared on social media about White, including claims that she died after getting a COVID-19 booster shot and that she was the sister of former first lady Barbara Bush. White died of natural causes, according to her agent, and she had no siblings.