Last reviewed: 21st April 2021
Which COVID-19 vaccines are recommended for use by NZTE staff?
The COVID-19 vaccines recommended for use by NZTE staff are those which have been authorised by World Health Organisation (WHO) Stringent Regulatory Authorities (SRAs).
The SRA list is a way of recognising that the health authorities of certain countries adhere to the very highest standards when they assess the efficacy and safety of new medicines. In nearly all circumstances if a medicine is approved for use by an SRA that decision can be trusted to have been based on a thorough assessment of the data.
The following countries are considered to be SRAs:
- United Kingdom
- United States of America
In addition, every European Union (EU) member state is listed by the WHO as an SRA. However this is in the full expectation that medicine authorisation decisions will be made by the European Medicines Agency rather than individual member states.
If a COVID-19 vaccine has obtained authorisation for use by a WHO SRA, it will in nearly all circumstances be considered recommended for NZTE staff. However this is subject to final review by the Healix Medical Director.
There is a great deal of discussion regarding which COVID-19 vaccine is ‘best’. For the vaccines approved by an SRA and endorsed by Healix, the best choice is the vaccine which you can access the most quickly and easily. All endorsed vaccines are very similar in their ability to prevent serious disease including hospitalisation; in each case they offer almost complete protection from such outcomes. Differences in efficacy between the endorsed vaccines are extremely minor, and vaccination should not be delayed in order to access a different endorsed product. If you have specific concerns regarding which vaccine to receive, please contact Healix to discuss.
So far, the following vaccines have SRA authorisation and may be used by NZTE staff:
- AstraZeneca-Oxford University (See further details below)
- Janssen (Johnson & Johnson) (See further details below)
This list is likely to grow as there are other very promising vaccines which are currently going through the regulatory process.
The AstraZeneca-Oxford University vaccine
The AstraZeneca-Oxford University vaccine is suspected to have an association with the formation of blood clots in some patients. This side effect is extremely rare. For most individuals the benefit of receiving AstraZeneca vaccine far outweighs this tiny risk. The current advice from Healix is as follows:
- If you are aged under 30 and have no underlying health conditions which predispose you to serious COVID, you should consider taking an alternative approved vaccine if one is available. If AstraZeneca vaccine is the only vaccine you can access, it is still a suitable option.
- If you have a medical condition which predisposes you to blood clots you should seek medical advice before taking the AstraZeneca vaccine.
- If you have already had one dose of AstraZeneca vaccine you should proceed with your second dose at the scheduled time. This applies to individuals of all ages. The only exceptions are if you suffered a blood clot after your first dose, or if you have a medical condition which predisposes you to blood clots.
The Janssen (Johnson & Johnson) vaccine
Use of the Janssen (Johnson & Johnson) vaccine is currently paused in most parts of the world where it was being rolled out. This is to allow further analysis of reports of blood clots in a very small number of patients. The issue appears to be similar to the one associated with the AstraZeneca vaccine.
At this time Healix advises delaying planned vaccination with this vaccine until the relevant Stringent Regulatory Authorities publish more specific guidance.
Emergency use authorisation vs full approval
In exceptional circumstances health authorities may grant a vaccine “emergency use authorisation” prior to the vaccine gaining full approval. These will be situations where there is a very pressing need to act quickly, and where it is felt that the benefits of a faster authorisation process outweigh any likely harms. The COVID-19 pandemic was felt to justify the use of this.
Although emergency use authorisation is faster than the usual full approval process, extensive safety and efficacy must still be provided from clinical trials and the data is subjected to extensive analysis. It is very unlikely that any vaccine which can present enough data to gain emergency use authorisation would subsequently fail full approval.
In the context of the current pandemic Healix considers it appropriate to recommend the use of vaccines which have SRA emergency use authorisation.
Detailed information on the vaccines approved for use by NZTE staff, including warnings, precautions and side effects
Click on the name of the vaccine you are interested in to be taken to the UK Patient Information Leaflet for the vaccine in question. This will provide detailed background information in an easy to understand format.
If you have any questions, please feel free to contact the Healix COVID-19 vaccination team on CovidVaccineEnquiries-NZTE@healix.com, and you will receive a response within two business days.
Further information on vaccine science from the World Health Organisation
The WHO has published an easy-to-understand series of explainer articles to help people understand how vaccination works:
Part 1 (link opens external website) focuses on how vaccines work to protect our bodies from disease-carrying germs.
Part 2 (link opens external website) focuses on the ingredients in a vaccine and the three clinical trial phases.
Part 3 (link opens external website) outlines the steps from completing the clinical trial phases through to distribution.
Part 4 (link opens external website) outlines the different types of vaccines.
COVID-19 Vaccine, Office of the Prime Minister’s Chief Science Adviser: COVID-19 Vaccines | Office of the Prime Minister’s Chief Science Advisor (pmcsa.ac.nz)
Unite Against COVID-19, Vaccines: COVID-19 vaccines | Unite against COVID-19
NZ Ministry of Health, COVID-19 Vaccines: COVID-19: Vaccines | Ministry of Health NZ
The Immunisation Advisory Centre, COVID-19 Vaccines: COVID-19 vaccines | Immunisation Advisory Centre (immune.org.nz)
If you have any additional enquiries, please send your enquiries to CovidVaccineEnquiries-NZTE@healix.com. The COVID Vaccine Support team will assist you with available COVID-19 vaccine information, known warnings, precautions and side effects, and any other queries you may have in relation to COVID-19 vaccines. The Healix Vaccine Team will respond to you within two business days.