Unrecognizable scientist or doctor wearing medical mask working with test tubes in laboratory. Medic checking samples of analyzes to COVID-19. Healthcare and coronavirus epidemic concept. Close up Stock Video
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226K views · 1.7K shares | When you’re in public, wear a mask that covers your nose AND mouth to help protect others and slow the spread of COVID-19. Learn how to wear your mask correctly: https://bit.ly/2XdSp61. | CDC | Facebook
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