Covid, here is who we will protect with the fourth dose

Do you really need a fourth dose of Covid vaccine? Many are asking this: scientists, but also ordinary people. Aifa is asking that, looking at the immunosuppressed, for now it is limited to caution. “It is in the definition phase, we are discussing the optimal timing”, explained the general manager Nicola Magriniafter the stop of the Ministry of Health to the Piedmont Region, which was ready to put it into practice for the most fragile.