The indications coming from Israel on the ability of 3 doses of the anti Covid Pfizer vaccine to protect against the Omicron variant, “are promising. But we must be sure. We need confirmed scientific data”. To tell Adnkronos Health Walter Ricciardi, consultant to the Minister of Health Roberto Speranza and teacher of Hygiene. “Surely – he added – the Israelis are very serious on a scientific level. So these statements must certainly be taken into consideration. But the indications must still be verified. If this is the case, the news is very good”.