By RNZ
People could be particularly vulnerable to the flu this winter, as several factors converge.
Official statistics show about 1000 lives have been saved in New Zealand during the last two winters when there has been very little influenza.
But Richard Webby from St Jude Children's Research Hospital in Tennessee expects people will be less resistant this time.
He said the US flu season coincided with the peak of Omicron, which dampened its spread, although it is possible to catch both the flu and Covid together, it is less likely.