Impossible to obtain herd immunity without vaccinating children against Covid. Thus Massimo Galli, director of the infectious diseases department of the Sacco hospital in Milan. “It is very important to vaccinate even the smallest” against the coronavirus “because it is now clear that, especially with the new variants, they are an important reservoir of infection. The hope, one day, of having herd immunity, collapses immediately if you do not have the possibility to vaccinate children as well “, explained Galli during a meeting for the Horizon Academy advanced training cycle. Regarding the possibility of administering the Pfizer / BioNTech anti-Covid vaccine in the US even to 12-15 year olds, the expert commented “finally. It is something that was absolutely missing and it was important to define and establish”, underlined. he then highlighted that “we are facing an epochal event: the coronavirus pandemic, but also the fact that the containment and individual protection measures have affected the circulation of all the viruses of the springs”, have produced “a year with very little flu , few colds and very few other viruses of the upper respiratory tract. There has been a hole in the epidemiological history. What it means we do not know, but it will allow us to understand many things “. expert underlined that the preparation “follows rules that have been established for years” and that “they cannot be disregarded”. That is: “Knowing which vaccine to do in time is fundamental, otherwise the doses cannot be prepared in time. The bet, this year even more – he observed – is to understand what will circulate and if it will circulate next year”.