First COVID-19 vaccine test on animals successful

A coronavirus vaccine developed in China has been proven effective in monkeys.

PiCoVacc, a vaccine made by Beijing-based Sinovac Biotech, used a very typical method to prevent the virus from infecting life forms: Putting a crippled virus into an animal's body, forcing its immune system to produce antibodies. The antibodies will also kill normal viruses.

The researchers injected the vaccine into rhesus macaques, a kind of monkey originating in India, and then exposed the monkeys to the novel coronavirus three weeks later.

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