This study is testing an investigational vaccine to be used as a booster to prevent coronavirus infection (COVID-19).
It is sponsored by Gritstone bio, Inc and is being carried out by a team of researchers at Manchester University NHS Foundation Trust.
- Aged 60+ years
- Have received two doses of the Astra Zeneca vaccine before the beginning of June 2021
- Never had a positive test for coronavirus
- Receiving the GRT-R910 vaccine and keeping a symptom diary for 8 days afterwards
- Attending a number of appointments over the 12 months study period.