NYC's First 24/7 Vaccine Sites Open In The Bronx And Brooklyn, Three More On The Way arrow Teresa Jimenez sits with a navigator during the registration process at the Covid-19 vaccination facility in the Bathgate Post Office, in the Bronx on January 10th, 2021. Kevin Hagen/AP/Shutterstock The city's first 24/7 vaccine sites in Brooklyn and the Bronx are set to vaccinate up to 2,000 people a day at each location, which city health officials hope will help New Yorkers newly eligible for the vaccine get the shot, including older New Yorkers ages 75 and up. The appointment-only sites opened Sunday, with 24/7 hours starting Monday, at the Bathgate Contract Postal Station in the Claremont section of the Bronx and the Brooklyn Army Terminal in Sunset Park.