antibodies November 27, 2020 10:59 am COVID-19 Immunity: How Long Do Antibodies Last? COVID-19 patients develop a certain level of immunity after battling the virus, but new studies find it may not last long. US & World Videos 1:40 Nighttime forecast for May 4 2:45 Crews use shears to break apart bridge on I-95 in Norwalk 4:14 Shrimp hush puppy fritters with Creole Comeback Sauce and bacon-wrapped jerk plantains 1:41 Forecast for Saturday, May 4 2:57 Diverted traffic bringing frustration, opportunity for Norwalk-area entrepreneurs