source? is that a non covid pneumonia, does he have a pneumonia from another source, brought about by cold and flu season. does he have a skin infection, that then travel to his blood, was there something else? maybe, all these things sound scary to viewers. was there urinary tract infection? i'm sure this work up has actually already done, and they already probably know the answer to it. the fact that he's already well probably transiting out of the icu in the next 48 to 72 hours, if not sooner, are all good prognostic signs here. early treatment, early intervention, and an early rebound, rachel, are all great predictors of getting out of the icu and getting back home. >> now, they're saying after two two days of treatment, his white blood cell count is trending down, how should we understand that? >> that's a great sign. that's the clinical symptoms that i went through, heart rate, respiratory rate, fever, and then there is what we get on our lab values, so we get that lab culture of our blood. is there something