The Covid-19 booster shots are the first major makeover of the Covid vaccines in 20 years. The FDA and CDC acted with urgency this summer to ensure they roll out in time for the fall. It’s unclear how much protection the new booster shots will provide. The new boosters could prevent 2.4 million infections, 137,000 hospitalizations, and 9,700 deaths if a new variant doesn’t emerge.
An early fall vaccination campaign could save the U.S. between $63 billion and $109 billion in medical costs.
Covid vaccines have been administered to millions of people in the U.S. with mostly mild side effects. The CDC’s independent advisory committee backed the shots on Thursday in an overwhelming vote. Some members of the panel had reservations about the lack of human data. Pfizer and Moderna showed that people’s immune systems responded better to the new booster shots than to the old ones.
Myocarditis and heart muscle inflammation could happen after a BA.5 booster, but no one knows for sure. Health officials think it will be the same as with the old vaccines.......