Breaking news: CDC "recommended on Wednesday that adults 65 and older and those with weakened immune systems receive another dose of the reformulated booster that debuted last fall. The endorsement followed a daylong discussion by the C.D.C.'s expert advisers. The Food and Drug Administration authorized the booster plan on Tuesday, and the C.D.C.'s recommendation was the final administrative step. Eligible Americans will be able to receive booster doses immediately." (nytimes.com - Covid boosters seniors)

DW and I got our bivalent shots last October (following 3 shots of the original Pfizer vax plus fairly severe Covid in June 2022). We will be traveling to Europe next month, and so, being in our 70s, we'll get yet another booster ASAP, unless our doc advises us otherwise (which I very much doubt).