The National Party wants all people flying into the country are tested for Covid-19 before they embark, but at least five of the people who tested positive for Covid-19 in managed isolation yesterday had tested negative before boarding their flight to New Zealand.
A University of Auckland medical professor says the case demonstrates just how infectious Covid-19 is, and that making it mandatory for people to be tested before they travel to New Zealand isn't a silver bullet.
Matthew Theunissen reports.
