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"this phase study, launched in record speed, is an important first step toward achieving that goal." infection with sars-cov- , the virus that causes covid- , can cause a mild to severe respiratory illness and include symptoms of fever, cough and shortness of breath. covid- cases were first identified
in december in wuhan, hubei province, china. as of march , , the world health organization (who) has reported cases of covid- and deaths worldwide. more than confirmed covid- cases and deaths have been reported in the united states as of march , according to the centers for disease control and prevention...
https://www.nih.gov/news-events/news-releases/nih-clinical-trial-investigational-vaccine-covid-19-begins