“It will be necessary to continue to monitor with great attention the activities that are most exposed to risk”. Giorgio Palù, president of the Italian drug agency Aifa, member of the technical-scientific committee for the Covid emergency, warns that “it’s not over”, even if yes, “we have begun to defeat this coronavirus”. In an interview with ‘Il Fatto Quotidiano’, the expert calls for caution. Especially in closed places. Are the reopening announced by the government premature? “They are not if we proceed with prudence, graduality and continuing surveillance – he replies – I am thinking of swabs and checks, not extensive, of course, but random. So guarantee health and economic survival, taking into consideration the activities that most expose to risk” . First of all “large indoor gatherings. I am thinking of entertainment events, discos, restaurants. It will also be possible to reopen indoors – Palù specifies – but by establishing a maximum number of people, avoiding the recirculation of air and practicing a control through green cards: customers already cured of Covid, vaccinated or with negative swab in the previous 48 hours. The speed with which the vaccination coverage proceeds “, with the” population vaccinated by now at 30% with the first dose, gives us hope “, however, reassures the president Aifa. But do vaccines already protect after a dose? “Yes – he replies – the impact of vaccination begins to be important even after a single dose; a series of studies establish that the serious illness event is averted. And now, at our latitude, from May to September we have ultraviolet radiation if not perpendicular, almost “. It means that “it lacks the essential characteristics for a respiratory virus to spread: humidity, low temperature, poor air circulation. The same thing happened a year ago”. So in October we will meet again like last fall? “We are unable to predict how this pandemic will evolve – explains the virologist – because Sars-CoV-2 is a new coronavirus”.