Late-season flu surge strains New Zealand hospitals amid low vaccine uptake

Flu activity in New Zealand has surged later than usual this season, intensifying strain on a health system already coping with high demand. Dr Hannah Cooper explained that the late peak aligns with a cold spell in early August, which facilitates virus spread and coincided with a rise in ambulance calls. Vaccine uptake remains low, with only 1,256,766 people vaccinated by early September, representing less than 25% of the population, most of whom were immunised in May.

The prevailing H3 subclade is covered by the vaccine, which primarily reduces serious disease rather than infection itself. Hospital occupancy data show many facilities operating beyond staffed capacity, though recent weeks have seen a modest decline in case rates, suggesting the peak may be passing.