J&J COVID-19 Vaccine: FDA recommends booster shot for all adults aged 18 and older at least two months following initial vaccination with the single-shot vaccine.

News release: Johnson & Johnson COVID-19 Vaccine Booster Shot Unanimously Recommended for Emergency Use Authorization by U.S. FDA Advisory Committee

Commentaries:

FDA panel endorses booster shot for J&J COVID-19 vaccine – Associated Press

The Johnson & Johnson one-dose vaccine offers good protection now. A booster shot will maximize that, experts say – CNN

FDA advisers recommend J&J Covid-19 vaccine boosters, talk mix and match boosters – CNN

Related: [Press release – not published yet] J&J says booster shot at two months provided 75% protection against moderate to severe COVID-19 globally and 94% of such cases in the U.S.