Only about 60 percent of eligible people have had their Covid booster shot so far, even though we are told it is the best defence against the highly transmissible Omicron variant.
In real numbers that's 1,287,972. So really how important is the booster in protecting us from this highly infectious Omicron and how long does that protection last?
Director of the Malaghan institute and Director of the Vaccine Alliance Aotearoa New Zealand, Immunologist Prof Graham Le Gros, talks to Lisa Owen.
