After 4 years of COVID, experts are just beginning to understand long COVID

4 years later, experts are just beginning to 'scratch the surface' of understanding long COVID Four years after the WHO declared the COVID-19 outbreak to be a pandemic, researchers say much is still not understood about a common complication: long COVID. ABC News ABC News

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Since the early days of the pandemic, scientists have learned a great deal about what puts someone at risk for long COVID, but researchers say we are still "scratching the surface" when it comes to our understanding of what causes the condition or how to treat it.

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