Omicron Today: This Year in Pandemic Policy Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A nurse loads a syringe with the Pfizer COVID-19 vaccine in Jackson, Miss. Millions of Americans are now eligible to receive booster shots to help increase their pro ( Rogelio V. Solis / Associated Press ) Produced by Katerina Barton Hosted by Alana Casanova-Burgess Produced by GBH, PRX and WNYC Studios