Monkeys infected with COVID-19 develop immunity in studies, a positive sign for vaccines By Reuters

© Reuters. A lady holds a small bottle labeled with a “Vaccine COVID-19” sticker and a medical syringe in this illustration

By Julie Steenhuysen

CHICAGO (Reuters) – Two research in monkeys revealed on Wednesday provide a few of the first scientific proof that surviving COVID-19 might outcome in immunity from reinfection, a positive sign that vaccines underneath improvement might succeed, U.S. researchers stated on Wednesday.

Although scientists have assumed that antibodies produced in response to the brand new coronavirus virus are protecting, there was scant scientifically rigorous proof to again that up.

In one of many new research, researchers infected 9 monkeys with COVID-19, the sickness attributable to the novel coronavirus. After they recovered, the staff uncovered them to the virus once more and the animals didn’t get sick.

The findings recommend that they “do develop natural immunity that protects against re-exposure,” stated Dr. Dan Barouch, a researcher on the Center for Virology and Vaccine Research at Harvard’s Beth Israel Deaconness Medical Center in Boston, whose research had been revealed in the journal Science.

“It’s very good news,” Barouch stated.

Several analysis groups have launched papers – a lot of them not reviewed by different scientists – suggesting that a vaccine towards the virus could be efficient in animals.

In the second examine, Barouch and colleagues examined 25 monkeys with six prototype vaccines to see if antibodies produced in response had been protecting.

They then uncovered these monkeys and 10 management animals to SARS-CoV-2, the official identify of the novel coronavirus.

All of the management animals confirmed excessive levels of virus in their noses and lungs, however in the vaccinated animals, “we saw a substantial degree of protection,” Barouch stated. Eight of the vaccinated animals had been utterly protected.

These research, which have been peer reviewed, don’t show that people develop immunity or how lengthy it would final, however they’re reassuring.

“These data will be seen as a welcome scientific advance,” Barouch stated.

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