Experts recommend getting vaccinated as soon as possible, with influenza yet to peak in New Zealand this year.
The new vaccine has been updated to counter several strains of influenza, including the lethal
"Aussie flu", expected to hit New Zealand.
Mid Central DHB has increased public health notices which advised people to get the flu vaccine and to enrol at their local GP.
Though the hospital continued to be over capacity, a Mid Central DHB spokesperson said the hospital coped by placing non-resourced beds into wards and reshuffling or calling in additional nursing staff.
National Influenza Strategy Group spokesperson Brenda Saunders said it took up to two weeks after the vaccination for the body to start developing protection against the flu.