“The third dose of the anti-Covid vaccine will have to be done. We should start in October, starting with the most fragile people, those in whom a lower immune response is expected after the vaccine, such as cancer patients on chemotherapy, people who have undergone a transplanted, etc. “. The undersecretary of health, Pierpaolo Sileri, told Adnkronos Salute. Read also “Other countries are proceeding in this direction, such as the United Kingdom and the US. We are waiting for a response from the regulatory bodies, but the scientific evidence indicates that a third recall will need to be made in some categories”, he concluded.