COVID-19 booster shots for residents of long-term care homes and seniors living in other congregate settings.According to the updated recommendation from NACI on Tuesday, seniors who have already received both doses of a COVID-19 vaccine should be offered a third shot at least six months after their last dose.
NACI backs 3rd dose of COVID-19 vaccine for immunocompromised However, a booster dose of the AstraZeneca and Johnson & Johnson vaccine should only be considered when an mRNA COVID-19 vaccine — from Pfizer and Moderna — is contraindicated or inaccessible, NACI said.In making the recommendation, the agency reviewed data on vaccine effectiveness and waning antibody responses after complete vaccination.“NACI has determined that there is.