Plano Fire Chief who had COVID-19 released from hospital after 16 days "Lean on your faith, lean on your family, and lean on your friends," said Rosemary Greif. Her husband came home after 16 long days at Medical City Plano. Author: Jobin Panicker Updated: 10:25 PM CST January 26, 2021 PLANO, Texas — Plano Fire Chief Sam Greif says the 16 days he spent at Medical City Plano fighting COVID-19 were some of the hardest days of his life. The Plano Fire Chief was first admitted in the beginning of the year, just days after receiving his first dose of the vaccine. Greif says he likely had COVID-19 while he was getting the shot.