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Final clinical trials for a coronavirus vaccine, developed by AstraZeneca and Oxford University, have been put on hold after a participant had a suspected adverse reaction in the UK.
Hopes have been high that the vaccine might be one of the first to come on the market, following successful phase 1 and 2 testing. Its move to Phase 3 testing in recent weeks has involved some 30,000 participants in the US as well as in the UK, Brazil and South Africa. Phase 3 trials in vaccines often involve thousands of participants and can last several years.
These are very bad news. I always thought UK was among the leading countries to develop a vaccine.
This probably also why we didn't hear much from the long term testing of the vaccine in Russia. Everything is still very new for the pharma companies and need to be tested over months. It seems more likely now that corona will be a major issue in 2021 still.