Baker: higher vaccinations needed for level change

There were 51 new community cases of Covid-19 reported yesterday including - worryingly - four in Waikato. The news is better for Northland, which may have dodged a bullet with no new cases being detected since two people travelled there from Auckland using false documents who went on to test positive for Covid. Cabinet is due to meet today to review the country's Alert Level settings and decide whether they should change. Joining me now is University of Otago epidemiologist Michael Baker.