Only a small number of Marylanders who have received their first COVID-19 vaccine shot have skipped their second dose, less than 4 percent.But Dr. William Moss, who leads the International Vaccine Access Center at the Hopkins Bloomberg School of Public Health, says it’s a risky move. He talks about the factors behind vaccine drop-off.Then, the math that signals the end of the pandemic. UMBC health economist Zoë McLaren gives us a lesson in exponential decay. Read her New York Times piece, "The Math That Explains the End of the Pandemic."

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