Fourth Covid vaccine may be needed to protect against Omicron, Tánaiste says

Mr Varadkar said that when a new or updated vaccine that specifically targets Omicron becomes available, the Government would 'of course' roll it out. File picture

A fourth Covid vaccine dose may be required to protect against the new Omicron variant, the Tánaiste has indicated.

Leo Varadkar has said a Covid vaccine may also be something people have to get on an annual basis in the future, similar to the flu jab that is administered every winter.