The CDC signed off on an additional updated COVID-19 vaccine dose for Americans who are older than 65 or have compromised immune systems, while doing away with the original monovalent vaccines.
About 23 million elderly Americans are now eligible for the second booster of the new bivalent vaccine, though only 42.6% of this age group have gotten the first booster, according to CDC data.
The CDC approved the updated recommendations on Wednesday after health officials at the FDA signed off on them earlier in the week.
