Neidio i'r prif gynnwy

Gwybodaeth am y brechlyn Covid.

Darllen manylion ar y ddalen hon

Cyhoeddwyd gyntaf:
1 Mawrth 2022
Diweddarwyd ddiwethaf:


23 February 2022  


ATISN 16019 – Covid 19 Vaccinations

Thank you for your request to the Welsh Government for information under the Freedom of Information Act (2000) received on 26 January regarding Covid-19 Vaccinations. You requested the following information:

Between the years 2013/2022, all studies and/ or reports, presentations, papers, emails or correspondence in the possession, custody or control of the Welsh Government (all parties) Government and/ or the Government funded Health Agencies with Pfizer, Moderna, J&J, the FDA, the CDC, the WHO and MHRA on:

  1. The exact chemical structure of the Covid-19 vaccinations concerning the 'Untranslated Regions' of the ingredients of the Covid-19 vaccinations. 
  2. The expression of the Spike protein of the Covid-19 vaccinations.
  3. The exact chemical sequence and structure of the RNAs & DNAs in the Covid-19 vaccinations.
  4. The Non-natural nucleosides contained within the Covid-19 vaccinations.
  5. The ingredient of Surouridine
  6. The Synthetic Lipids

Our Response

The Welsh Government does not hold the information you have requested. The Medicines and Healthcare products Regulatory Agency may hold this information, its contact details are:

Medicines and Healthcare products Regulatory Agency
MHRA Freedom of Information Team
10 South Colonnade
E14 4PU
United Kingdom

Alternatively you could contact the vaccine manufacturers directly, their contact details can be found at Covid-19 Vaccination information - electronic medicines compendium (emc).

Next Steps

If you are dissatisfied with the Welsh Government’s handling of your request, you can ask for an internal review within 40 working days of the date of this response. Requests for an internal review should be addressed to the Welsh Government’s Freedom of Information Officer at: 

Information Rights Unit, 
Welsh Government,
Cathays Park, 
CF10 3NQ 
or Email:

Please remember to quote the ATISN reference number above. 
You also have the right to complain to the Information Commissioner. The Information Commissioner can be contacted at: 

Information Commissioner’s Office, 
Wycliffe House, 
Water Lane, 

However, please note that the Commissioner will not normally investigate a complaint until it has been through our own internal review process.

Yours sincerely