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Moderna announces positive Phase 1 trial data for coronavirus vaccine

The biotech firm Moderna Therapeutics announced that the first eight participants in the Phase 1 of its COVID-19 vaccine trial developed some antibodies after a single dose. Moderna is now expected to start a second round of clinical trials as soon as next month. Dr. David Agus joined "CBS This Morning" to explain the development and the latest in the race for a vaccine.
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