Researchers in Hong Kong say they have documented the first instance of a man who was reinfected after first contracting the novel coronavirus more than four months ago.
The researchers at the University of Hong Kong on Monday said their findings indicate the disease, which has killed more than 800,000 people worldwide, may continue to spread globally despite developing herd immunity.
The 33-year-old male was cleared of COVID-19 infection and discharged from a hospital in April, but tested positive again after returning from Spain via the United Kingdom on August 15.
The patient had appeared to be previously healthy, researchers said in the paper, which has been accepted by the international medical journal Clinical Infectious Diseases.
He was found to have contracted a different coronavirus strain from the one he had previously contracted, and remained asymptomatic during the second infection. (Al Jazeera website)
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