Air travel poses some unique problems for controlling the international spread of disease. When large numbers of people are able to move quickly around the world, disease can spread easily – beyond the travellers to those they come into contact with after the flight.
Aircraft arriving in New Zealand from overseas are subject to entry requirements. A number of these focus on the health of passengers and crew on the aircraft, with the aim of preventing the international spread of diseases or other public health risks.
Passengers on aircraft arriving in New Zealand need to fill out a Passenger Arrival Card (New Zealand Customs Service website). This contains information required by the various New Zealand government agencies. Copies of the card are provided on arriving aircraft.
There are also requirements on aircraft departing New Zealand, so that diseases and public health threats are not exported from New Zealand to another country.