UPDATE – FDA shortens the booster interval for Moderna in the U.S. to at least 5 months for those 18 and older.
Just a couple of days ago the FDA said the period between second Moderna vaccine shot and booster should remain at 6 months.
U.S. Food and Drug AdministrationCoronavirus (COVID-19) Update: FDA Shortens Interval for Booster Dose of Moderna COVID-19 Vaccine to Five MonthsThe FDA amended the EUA for the Moderna COVID-19 Vaccine to allow for a booster dose at least five months following the primary series of the vaccine.