evidence: Moderna Therapeutics begin the first human trials of a vaccine to protect against COVID-19 at a research facility in Seattle, Washington. [...] Moderna’s COVID-19 vaccine is found to be 95.4% effective in its clinical trial. [...] FDA fully approves the Moderna COVID-19 vaccine for all people ages 18 years and older. Full FDA approval further reinforces that the Moderna COVID-19 vaccine has been shown to meet the agency’s high standards for safety, effectiveness, and consistent quality in manufacturing. To date, COVID-19 vaccines are estimated to have saved at least a quarter of a million lives and prevented more than 1 million hospitalizations.