upended by this virus. i want to warn you some of this may not be easy to watch gabe gutierrez reports from inside a covid icu in maryland. >> reporter: when a patient's heart stops, seconds matter this is a code blue. an older covid patient unvaccinated >> this is as urgent as it gets this is the acute time frame. we're here trying to save someone's life. >> reporter: the frantic scene as heart-breaking as it is familiar. >> we are going to intubate. >> reporter: she never imagined she would be so busy. >> it's very tough you go to the bathroom and you cry and you come back and you do it all over again. >> reporter: this was supposed to be her day off. she came in anyway why? >> because i'm a nurse. i'm a nurse. and i signed up to be a nurse. the patients did not sign up for covid. >> reporter: just outside d.c., doctor's community health center in maryland has seen a 925% jump in