Doctors in the United States have documented what is believed to be the longest-known case of COVID-19, lasting an extraordinary 776 days before the patient’s death. The unnamed man, who was living with HIV, shows how weakened immunity can allow the coronavirus to linger, mutate, and adapt in ways rarely seen in healthy people. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

Medical experts at Boston University report that the 41-year-old man fell sick with a cough, headaches, and tiredness in mid-May 2020, shortly after being in close contact with a lab-confirmed COVID case.

However, it was not until September 2020 that his COVID-19 infection was officially diagnosed when his health worsened and he was rushed to hospital.

The man wa

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