Answering Vaccine Booster Questions | Wisconsin Public Radio

In this Sept. 14, 2021 photo, a syringe is prepared with the Pfizer COVID-19 vaccine at a clinic at the Reading Area Community College in Reading, Pa. President Joe Biden has directed OSHA to write a rule requiring employers with at least 100 workers to force employees to get vaccinated or produce weekly test results showing they are virus free. Matt Rourke/AP Photo