Johnson & Johnson vaccine second dose, what the experts say

Johnson & Johnson vaccine and second dose, right to do it? And in what times and with which vaccine? To give an opinion to Adnkronos Salute are Massimo Andreoni and Matteo Bassetti. “J&J is a good vaccine, but after some time the protection drops, so it is correct to think that a booster should be done within the sixth month and I believe that the heterologous is the right option”, underlines to Adnkronos Salute Massimo Andreoni, head of Infectious Diseases at the Tor Vergata Polyclinic in Rome and scientific director of the Italian Society of Infectious and Tropical Diseases (Simit). Yesterday Franco Locatelli, president of the Higher Health Council (Css) and coordinator of the Technical Scientific Committee (Cts) for the Covid emergency, guest of ‘Che tempo che fa’ on Rai 3, said that “there is news of a review process by the FDA. Subsequently there will certainly also be by Ema. If there were indications on the possibility of administering a second dose with a messenger RNA vaccine, it would have the advantage of inducing an even better immunological response. These people – he added – they will be called, there is a very precise vaccination register. Administering more than 2 months does not compromise efficacy. As soon as the indications from the regulatory agencies arrive, everything will be done quickly “. well to do the booster with an “anti-Covid” mRna vaccine, therefore a heterologous, as we said to do with AstraZeneca. This would give a ‘booster’ that acts as a third dose would “do” for those who had a made an mRna vaccine. Certainly it is true not only for the most fragile, but for all “those who have made the single-dose vaccine, thus highlights Matteo Bassetti, director of the Infectious Diseases Clinic of the San Martino Polyclinic in Genoa, intervening in the debate on the recall to those who have had the single dose of the Janssen vaccine.