01.25.2021 - By PBS NewsHour
There have been more than 40 million Pfizer and Moderna vaccine doses delivered around the U.S. thus far, with more than half of those administered. But while the pace has increased, the rates of vaccination vary widely by states and counties. Dr. Jennifer Kates, senior vice president and director of global health at the Henry J. Kaiser Family Foundation, joins Amna Nawaz to discuss.
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