Deborah Birx: Understanding COVID response failures critical for future | Cuomo

The ailment known as long COVID continues to puzzle doctors, who have not yet been able to identify what causes the prolonged symptoms in patients. Dr. Deborah Birx, the former White House coronavirus response coordinator who is now a senior fellow at the Bush Institute, says understanding what the CDC got wrong about COVID-19 is critical for planning the response to future health crises.