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Dr. Hotez on coronavirus booster shots: 'This was all predicted and predictable'


NBC's Morgan Chesky, Dasha Burns and Sam Brock report from across the country with breaking updates on the state of the coronavirus pandemic, and Texas GOP Gov. Greg Abbott testing positive for Covid-19 as he pushes back against mask mandates. Co-Director of the Center for Vaccine Development at Texas Children’s Hospital, Dr. Peter Hotez, explains what the recommended coronavirus booster shot means when it comes to the effectiveness of current vaccines.