Math Can Help In Deciding How To Distribute The Vaccine By Joe Palca / NPR Published January 10, 2021 at 1:43 AM PST This story was published more than 3 years ago. Facebook WhatsApp Email Mathematical models can help public health officials decide how best to deploy the COVID-19 vaccine when it is in short supply. Copyright 2021 NPR. To see more, visit https://www.npr.org.