Fourth dose of vaccine concrete possibility says ISS chief

(ANSA) - ROME, DEC 3 - A fourth dose of the COVID-19 vaccine is a "concrete possibility", the head of the Higher Health Institute (ISS) said Friday.
    "A fourth dose of the anti-COVID vaccine is a concrete possibility" said Franco Locatelli, who is also coordinator of the government's COVID technical and scientific committee.
    Italy is currently giving third dose booster shots amid a fourth wave of the virus and the recent discovery of the new variant of concern, Omicron.
    Locatelli said Friday that seven million people in Italy had already had the booster jab. (ANSA).