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Can COVID-19 pill be substitute for vaccination?
05:22

U.S. pharmaceutical giant Pfizer on Tuesday asked regulators to grant emergency use authorization for its COVID-19 pill after it was shown to cut hospitalization and death by nearly 90 percent among newly infected high-risk patients. Dr. Alice Hyun-Kyung Tan, an internist at MizMedi Women's Hospital in Seoul, shares her insight on the issue.

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