Moderna Reports Preliminary Results of COVID-19 Vaccine to Be 94.5% Effective

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(CBS Detroit) - Moderna says preliminary results show it's Phase Three vaccine is 94.5% effective in trials.

This comes after Pfizer said last week that its vaccine was more than 90% effective.

Among 30,000 participants receiving the 2 dose Moderna vaccine, there were 95 cases of symptomatic COVID.

All but five were in the placebo arm.

There were no reports of serious side effects.