alarming is the number of children hospitalized is at its highest it's ever been. more than 500 children admitted each day last week. cnn's miguel marquez reports from the largest hospital seeing record numbers. >> reporter: 4-month-old grayson perry, his belly is rapidly expanding and contracting, one of many children with covid-19 struggling to breathe. are you afraid they have to intubate him? >> yeah, a little bit. it's scary and i hope that he's able to get better and go home. >> reporter: mom to three thinks her youngest picked up the virus at a christmas family gathering. her only job now, keeping her son in good spirits. >> i do talk to him in like a little baby voice. i sing to him. i can't sing, but he likes it. >> reporter: one of nearly 70