Monkey studies encouraging for coronavirus vaccine

Two studies in monkeys offer some of the first scientific evidence that surviving COVID-19 may result in immunity from reinfection, as well as a positive sign that vaccines under development may succeed.

In one of the new studies, researchers infected nine monkeys with the new coronavirus. After they recovered, the team exposed them to the virus again and the animals did not get sick.

In the second study, the same researchers treated 25 monkeys with experimental vaccines and then exposed them to the coronavirus. In the vaccinated animals, “we saw a substantial degree of protection,” said Dr Dan Barouch.

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