First Confirmed U.S. Case of COVID-19 Reinfection

WEDNESDAY, Oct. 14, 2020 (HealthDay News) — A 25-year-old Nevada man is the first person in the United States confirmed to have developed COVID-19 twice.

His second infection was worse than the first, but he has recovered, USA Today reported.

The case involving the otherwise healthy man raises questions about how long people are protected after being infected with the coronavirus that causes COVID-19, and how much protection may be offered by a vaccine.

“It’s a yellow caution light,” Dr. William Schaffner, an infectious disease expert at the Vanderbilt University School of Medicine in Nashville, Tennessee, told USA Today. He was not involved in the research.

At least 22 cases of reinfection worldwide have been confirmed worldwide since the start of the coronavirus pandemic, but the actually number of reinfections is unknown.

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