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The Seattle patient has a second COVID infection

– Only for the third time in the world, a COVID-19 survivor has contracted a second coronavirus infection. The man, who is about 60 years old, was hospitalized after the first infection and then lived in a nursing center, KIRO reports. More than four months later, the patient developed mild symptoms. “Most of the reported cases are milder for the second time,” said Dr. Jason Goldman, head of COVID’s research team at the Swedish Medical Center in Seattle. “So even if the immune system has failed to prevent a second infection, it seems to be limiting the severity a second time.”

; Other documented cases of a second COVID-19 infection include a 35-year-old man in Hong Kong and a 25-year-old man in Renault.

A team at the medical center is trying to understand what the case means in terms of immunity and vaccines. “We don’t know how many levels of immunity we need to be protected,” Goldman told KIRO. If this coronavirus works the way others do, Scientific American says reinfections will become more common. Antibodies developed in the body to fight the first infection appear to make the second infection less severe, Goldman said. “Most cases have had four or more months from the first to the second infection, so this could be a turning point,” he said. “Our immunity (may) start to weaken then, but we really don’t know that yet.” Vaccines in development are now designed to fight the original virus, but now there is a different strain that infects humans. (Read more coronavirus stories.)

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