Healthy, young volunteers will be infected with coronavirus to test vaccines and treatments in the world’s first Covid-19 “human challenge” study, which will take place in the UK.
The study, which has received ethics approval, will start in the next few weeks and recruit 90 people aged 18-30.
They will be exposed to the virus in a safe and controlled environment while medics monitor their health.
The UK has given doses of a Covid vaccine to more than 15 million people.
The Human Challenge study is being delivered by a partnership between the government’s Vaccines Taskforce, Imperial College London, the Royal Free London NHS Foundation Trust and the company hVIVO, which has pioneered viral human challenge models.
Clive Dix, interim chair of the Vaccines Taskforce, said: “We have secured a number of safe and effective vaccines for the UK, but it is essential that we continue to develop new vaccines and treatments for Covid-19.
“We expect these studies to offer unique insights into how the virus works and help us understand which promising vaccines offer the best chance of preventing the infection.”