As more children become infected with Covid-19, doctors are paying closer attention to potential long-term effects.
In adults, one of Covid’s most troubling effects has been so-called long-haul cases, in which people whose illness initially seemed moderate end up having symptoms for months, sometimes getting worse over time. Now as doctors warn that children may be more vulnerable to the virus than initially believed, researchers are looking more closely at longer-term symptoms in kids, too.
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