18-year-old DD seems in no particular hurry to have the booster jab. I'm conscious that if she was a few months younger or had had her second jab one month later, she wouldn't even be eligible for a booster, so I'm not convinced that I should trying to persuade her to get boosted asap. Four of DS's (double jabbed) friends, aged 20 or 21, have had Covid very recently. At least two were completely asymptomatic. None were seriously ill and all were fully recovered by the end of the isolation period. 21-year-old DS has recently had a booster (Moderna) because he needs it for travel abroad. Was a bit ill the following day, but felt OK by the evening. Interested in others' experiences of very recent (therefore probably Omicron) Covid or of boosters in this age group.