What would you like to find out about?

Control Group Cooperative

Find out more about the Control Group, being a participant and the CG Health Card.

C19 Vaccine Study

Comparative health outcomes of those who did and did not take the SARS-CoV-2 vaccine.

How to use the system

Learn how to create, manage and maintain your health records. Everything you need to know.

Our Community

Join our community events, Telegram groups and social media channels.

The Shop

Want to know your blood group/type? We sell the Eldon
blood-type test
(UK only at present).

Monthly Newsletters

Keep up-to-date with our monthly online newsletters.

CONTROL GROUP 2.0

We have been redesigning our website, study portal and back-end database to make a more robust system, with better, long-term functionality, flexibility and an improved user experience.

New participants can join the new system right away and existing participants will be migrated to the new system over the few weeks. Thank you for your patience during this transition period.