news 4 now July 21, 2021 4:11 pm News 4 Now, July 21 As COVID-19 infections tick up in the city, Mayor de Blasio is hoping a new mandate for health workers to get the shot or get tested weekly will reverse the trend. Adam Kuperstein reports. 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