28+ Moderna Vaccine Covid 19 News Gif. Cnbc's meg tirrell reports on moderna's vaccine trial latest, which found a 94.5% efficacy rate. Moderna said its experimental coronavirus vaccine was nearly 95 percent effective in a pivotal study, adding to hopes that an inoculation for the deadly virus.

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A week ago, competitor pfizer inc. Moderna said its vaccine appears to be 94.5% effective, according to preliminary data from the company's still ongoing study. You are using an older browser version.

In a trial of 30,000 people given two doses.

Vaccine candidate now expected to remain stable at standard refrigerator temperatures of 2 degrees to 8 degrees c *moderna. A new covid vaccine developed in the us is even more effective than one produced by pfizer in the uk, new results suggest. While the challenges of manufacturing and. Moderna said its experimental coronavirus vaccine was nearly 95 percent effective in a pivotal study, adding to hopes that an inoculation for the deadly virus.