What Happened Today: Health Care System Crumbles, Testing Questions
Marc Lipsitch, a professor of epidemiology at the Harvard School of Public Health, answers questions about access to testing for COVID-19, false-negative results and the challenges of mass testing.
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May 9, 2020 at 07:12AM
Health Care
Thứ Bảy, 9 tháng 5, 2020
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