Healthy young adults who have previously contracted COVID-19 will be recruited to take part in a new human challenge trial to study how the body’s immune system reacts to the deadly Coronavirus, for a better understanding to protect against the virus and also for more accurate tests. The Oxford University-led human challenge trial will look at what kind of immune response can stop people from becoming re-infected and also how the immune system reacts second time round. 

People aged between 18 and 30 who have previously been naturally infected will be recruited and re-exposed to the virus in a safe, controlled environment and paid around 5,000 pounds to be quarantined for 17 days at a hospital.