On friday, the U.S. Food and Drug Administration shortened from at least five months to a month the interval between primary series and boosters of the Moderna COVID-19 vaccine for people aged 18 and over.
The most effective way to prevent most cases of COVID-19, including all the circulating variants, is vaccination. By reducing the time between the primary series and booster dose, you may be able to reduce waning immunity over time, said Peter Marks, director of the FDA’s Center for Biologics Evaluation and Research.
On Monday, the Food and Drug Administration announced a decision to reduce the interval between booster doses of Pfizer and BioNTech’s COVID-19 vaccine to five months from six months, citing the improved protection earlier against the fast-spreading Omicron variant.