“We are organizing Christmas dinners and we ask everyone to make a swab first.” This was stated by virologist Andrea Crisanti, director of the Department of Molecular Medicine at the University of Padua, when he talked about his precautions for the holidays to the microphones of ‘A sheep’s day’ on Rai Radio 1. Strictly “molecular test because – explains Crisanti – how it is known that the rapid swab has a reliability of 70% if not 50% at best “. How would I behave with “an unvaccinated relative? I don’t think I have any, I know all old people vaccinated”. “Two are business dinners,” he says again, answering questions. “One is a dinner with friends, we are all vaccinated”, he repeats. Third dose chapter: “I wish we knew how long” the protection lasts. “What Israel’s experience tells us is that it fully restores the protection and this is extremely positive”, also considering the risks associated with the Omicron variant. “And generally the third dose, for all vaccines, requires booster after one year. Unfortunately, we are all learning now …”.