COVID-19: Adults to Take Part in New Human Challenge Trials for Re-Infection Study

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 to COVID in second time round.

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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 for facilitating more accurate tests.

Helen McShane, Oxford, SMEStreet

Helen McShane, Oxford

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.

“Challenge studies tell us things that other studies cannot because, unlike natural infection, they are tightly controlled. When we re-infect these participants, we will know exactly how their immune system has reacted to the first Covid infection, exactly when the second infection occurs, and exactly how much virus they got,” said Helen McShane, Professor of Vaccinology at the Department of Paediatrics, University of Oxford and Chief Investigator on the study.

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