e.m.t.s and sanitation workers largely unmasked rallied out the mayor's official residence one day before the official deadline to get a covid shot or be placed on unpaid leave. >> members have choice about their health. >> reporter: all by 38,000 city workers are vaccinated but about a quarter of the police force and a third of firefighters are not. >> you can't force a vaccine on somebody, it should be a choice. >> reporter: six of the country's ten largest cities have or are planning vaccine mandates for municipal workers, of those, new york, l.a. l.a. and san diego do not have a testing alternative. new york's largest police union sued this week to block the mayor's vaccine mandate but a state judge rejected that request. the police are asking the city to adopt a weekly testing option in lieu of vaccination, even though first responders are at higher risk of contracted covid.