Many U.S. prison guards refusing vaccine despite COVID-19 outbreaks Infection rates in prisons are more than 3 times as high as in the general public, and prison staff helped accelerate outbreaks. By NICOLE LEWIS of The Marshall Project and MICHAEL R. SISAK of The Associated Press Share Kareen Troitino stands outside the Federal Corrections Institution on March 12 in Miami. Troitino, a local corrections' officer union president, said that fewer than half of the facility's 240 employees have been fully vaccinated as of March 11. Many of the workers who refused had expressed concerns about the vaccine’s efficacy and side effects, Troitino said. Marta Lavandier/Associated Press