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CDC probe of rare heart inflammation shows ‘system is working,’ doctor says

03:11

Reacting to news that the CDC is investigating rare heart inflammation in a small number of vaccinated teens and young adults, Dr. Richard Besser, former acting head of the CDC, tells TODAY that the agency is saying, “There aren’t more cases than we’d expect, but we want to make sure.” He adds: “Even if there is a connection … we do know that COVID infection is much more serious.”