practice optional. so, how can parents protect their children? here to discuss it is dr. mark klein, physician in chief at children's hospital new orleans. dr. klein, welcome. >> thanks for having me. >> what are you seeing at your hospital? i understand that you've seen the number of very sick children admitted to children's hospital with covid go from 0 to 20 over the past few weeks. what's going on there? >> we've had an influx of patients over the past couple of weeks, joshua, just a month ago, our test positivity rate for children seen hour outpatient settings was just 1%. two weeks ago, it had risen to 7%. today, it's 15 to 20%. and that community transmission that's going on has translated into a number of hospital admissions, including admissions to our intensive care unit. and this is something we didn't see throughout the entirety of 2020.