Moderna coronavirus vaccine shows 'promising' safety and immune response results in published Phase 1 study, but more research is needed

(CNN) A Covid-19 vaccine developed by the biotechnology company Moderna in partnership with the National Institutes of Health has been found to induce immune responses in all of the volunteers who received it in a Phase 1 study.

These early results, published in the New England Journal of Medicine on Tuesday, showed that the vaccine worked to trigger an immune response with mild side effects -- fatigue, chills, headache, muscle pain, pain at the injection site -- becoming the first US vaccine candidate to publish results in a peer-reviewed medical journal

The vaccine is expected to begin later this month a large Phase 3 trial -- the final trial stage before regulators consider whether to make the vaccine available.

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