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From the onset of this horrific coronavirus pandemic, questions have arisen about potential for reinfection. Now, investigators in Hong Kong report findings on a person with an apparent second SARS-CoV-2 infection.
The 33-year-old, ostensibly immunocompetent male, living in Hong Kong, had laboratory-confirmed COVID-19 in March 2020. Symptoms included productive cough, sore throat, fever, and headache. He was hospitalized, recovered, and was discharged 2 weeks later following two negative SARS-CoV-2 nasopharyngeal and throat swabs. Four and one half months later, entry screening upon his return to Hong Kong from Spain via the U.K. was positive for SARS-CoV-2. He was and remained asymptomatic but had slightly elevated C-reactive protein.
Labora…