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    Spread of Covid impacting start of classes for some schools across U.S.

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Diagnosis offers new hope to boy, 4, who suffers strokes

02:09

In his short life, 4-year-old Caelon Arthur has suffered six major strokes that had experts baffled. But after an National Institutes of Health doctor saw Caelon on TODAY, the boy underwent new tests and is finally getting some answers with an official diagnosis. NBC’s Gabe Gutierrez reports.