Moderna Covid-19 Vaccine Shows Promising Result in Animal Tests

Moderna Inc.’s vaccine candidate against Covid-19 protected against the virus in a trial that inoculated 16 monkeys, an encouraging step on the path to a defense for humans against the pandemic.

Two injections of the vaccine protected against heavy exposure to the virus at two different levels of dosage, Moderna said in findings published Tuesday in the New England Journal of Medicine. The primates didn’t show any sign of creating enhanced disease, a problem that has occasionally been associated with vaccines.

The results, if they hold up in humans, suggest that the vaccine may be able to protect against Covid-19 in both the upper and lower airways.

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