The Ministry of Health is urging Kiwis to be careful after anti-vaccination leaflets were left in Hamilton residents' letterboxes.
The leaflets, which were distributed in the Central City area, used Unite Against COVID-19 branding and claimed people needed to get 120 booster shots.
"Avoid disappointment and book your next 120 boosters in bulk," the header of the letter said.
It also included boxes to put details such as name, address, date of birth, and phone number. As well as a section to book dates for eight booster shots.
At the bottom of the letter, in a tiny font, it says, "this is not an official government document, it's meant to make you think" before promoting anti-vaccination group Voices for Freedom.
The Ministry of Health told Newshub it is aware of the letters and urged Kiwis to be careful.
"We encourage people to only go to trusted sources for information on the virus and the vaccine.
"Misinformation can be spread through a range of different channels including social media, traditional media (television, radio and print), pamphlets, posters and letterbox drops.
"Most false information is not spread intentionally, but there is a small group of people and organisations within New Zealand and overseas who actively share false and misleading information and are seeking to cause harm."
The Ministry said it's important to only share information from official sources to stop the spread of misinformation.
"We all have a responsibility to stop misinformation spreading, and we encourage people to only go to trusted sources to get reliable information.
"We encourage social media companies to continue to be proactive in helping to manage misinformation.
"If people see any examples of misinformation about COVID-19 or the vaccine, whether it’s online or a physical document, we encourage them to report it to CERT NZ through their website or calling 0800 2378 69."
The Ministry said they are working closely with the Government to provide guidance to the health sector, businesses and community leaders on responding to false information.
Government logos and emblems are protected by copyright laws.
"The New Zealand Government logo, Coat of Arms and other logos, emblems and trade marks on Govt.nz are protected by law. You must not copy or use any logo, emblem or trade mark without express permission and compliance with applicable laws," the New Zealand Government website states.
New Zealand's booster program is available to people who have had their second dose six months ago. Details about the rollout can be found on the Unite Against COVID-19 website.
Police told Newshub they were not immediately aware of the letters.
It's not the first time anti-vaccine letters have been handed out. Back in April, Wellington commuters were warned to throw out a flyer being handed out by anti-vaxxers.
The flyer perfectly matched the COVID-19 colour scheme, came complete with Ministry of Health logos and even featured the Director-General of Health.
It told commuters all the reasons masks were bad and provided them with an exemption card they were encouraged to use.
