As many household prepare for a busier holiday season than in the last two winters of lockdowns and precautions, coronavirus booster vaccinations are of vital importance to those whose immunity may now be waning. To ensure peak protection during gatherings of families and friends over Christmas, experts are advising anyone considering a booster to do so at the start of December. “Three to four weeks before the festivities” is the best time to get a booster vaccine if you want peak resistance against a coronavirus infection under the mistletoe, according to Professor Julian Schulze zur Wiesch, …