When the ‘new pandemic flu’ first appeared in 1918 there was no immediate cause for alarm. The disease was different to other strains experienced in the past – for example, it was unusually prevalent amongst young healthy adults. But most people affected by what would turn out to be ‘the first wave’ of the pandemic recovered.
It is clear that no matter how the second wave developed in New Zealand, it was many times more deadly than any previous influenza outbreaks. No other event has killed so many New Zealanders in so short a space of time. While the First World War claimed the lives of more than 18,000 New Zealand soldiers over a four-year period, the second wave of the 1918 influenza epidemic killed almost 8600 people in less than two months.
Following the pandemic speculation continued over the Niagara's involvement in bringing the virus to New Zealand. The Department of Public Health was also heavily criticised. The government responded by setting up a royal commission with wide powers of investigation.