July 26, 2021 3:13 pm News 4 Now 7/26 Mayor Bill de Blasio expanded New York City’s vaccine mandate to include all city workers on Monday. Starting this fall, employees who have not provided proof of COVID-19 vaccination must test weekly for the virus. Local 4:31 News 4 Now 9/7 4:48 News 4 Now 9/5 4:46 News 4 Now 8/31 4:43 News 4 Now 8/21 4:53 News 4 Now 8/18