Monkeys reinfected with Covid-19 display immunity, two studies show
Researchers infected nine monkeys with Covid-19. When they recovered, the team exposed them to the virus again and the animals did not get sick
Chicago, US — 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, US researchers said on Wednesday.
Although scientists have assumed that antibodies produced in response to the new coronavirus virus are protective, there has been scant scientifically rigorous evidence to back that up...