Female Comedian Collapses On Stage After Telling Joke About Being Triple Vaxxed

Eyewitnesses tell TMZ ... the former "Chelsea Lately" star was headlining the sold-out show, when she delivered her second joke ... "I'm vaxxed, double vaxxed, boosted ... and flu shot and shingle shot and haven't gotten COVID and Jesus loves me most."

As soon as she delivered the joke, she just collapsed and hit her head on the floor. Everyone thought at first it was all part of the act, but it was not. She was conscious, but clearly, all was not well. An EMT and a nurse happened to be in the audience ... they rushed up on stage to provide first aid.