Breaking news: FDA clears a second omicron-targeting booster shot for people who are at high risk from the coronavirus
The action appears likely to provide a measure of reassurance to people whose age or medical issues put them at risk of serious illness if they are infected by the coronavirus. Some got updated boosters last fall, soon after the omicron-targeting shots werethe mRNA vaccines have a history of waning protection within months of administration.
Even as some people have been clamoring for a second booster, others appear unconcerned. Only about 42 percent of people 65 and older have received the first bivalent booster,Experts have expressed differing views on the necessity of a second bivalent dose. While some say little data exists to justify it, others believe the extra shot is a good option for high-risk individuals. The United Kingdom and Canada already are offering spring booster shots for vulnerable individuals.
“Bivalent mRNA booster vaccination in adults aged 65 years or older is an effective and essential tool to reduce their risk of hospitalisation and death due to covid-19,” wrote study co-author Ronen Arbel of Clalit Health Services, a health-care organization in Israel.
The FDA still plans to move to a once-a-year coronavirus vaccine shot for most Americans — a timetablein January that is intended to coincide with annual flu inoculations in the fall. The FDA and its advisers hope the simplified schedule will encourage more people to get coronavirus vaccine doses. Officials will select a reformulated dose in coming months based on which coronavirus strain scientists think is most likely to be circulating in fall and winter.
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