The patient with a severely weakened immune system had COVID-19 for almost a year and a half, scientists reported, underscoring the importance of protecting vulnerable people from the coronavirus.
A U.K. patient with a severely weakened immune system had COVID-19 for almost a year and a half, scientists reported, underscoring the importance of protecting vulnerable people from the coronavirus.
Snell’s team plans to present several “persistent” COVID-19 cases at an infectious diseases meeting in Portugal this weekend. Each time researchers tested patients, they analyzed the genetic code of the virus to make sure it was the same strain and that people didn’t get COVID-19 more than once. Still, genetic sequencing showed that the virus changed over time, mutating as it adapted.
Five patients survived. Two cleared the infection without treatment, two cleared it after treatment and one still has COVID-19. At the last follow-up earlier this year, that patient’s infection had lasted 412 days.
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