Two studies in monkeys published on Wednesday offer some of the first scientific evidence that surviving COVID-19 may result in immunity from reinfection, a positive sign that vaccines under development may succeed, U.S. researchers said on Wednesday.
FILE PHOTO: A woman holds a small bottle labeled with a"Vaccine COVID-19" sticker and a medical syringe in this illustration taken April 10, 2020. REUTERS/Dado Ruvic/Illustration
In one of the new studies, researchers infected nine monkeys with COVID-19, the illness caused by the novel coronavirus. After they recovered, the team exposed them to the virus again and the animals did not get sick. In the second study, Barouch and colleagues tested 25 monkeys with six prototype vaccines to see if antibodies produced in response were protective.
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