Studying the disease

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CDC and other agencies and institutions around the world are conducting thousands of epidemiological studies to learn more about COVID-19 and the virus that causes it. These studies help us understand more about COVID-19, the virus that causes it, how it spreads, and the people at highest risk.

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Forrás: https://tools.cdc.gov/api/embed/downloader/download.asp?m=403372&c=408418