Researchers developing the Oxford–AstraZeneca COVID-19 vaccine have identified biomarkers that can help to predict whether someone will be protected by the jab they receive.
The team at the University of Oxford, UK, identified a ‘correlate of protection’ from the immune responses of trial participants — the first found by any COVID-19 vaccine developer. Identifying such blood markers, scientists say, will improve existing vaccines and speed the development of new ones by reducing the need for costly large-scale efficacy trials.
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