which is higher, quicker and less predictable, frankly, than what we saw in previous clusters. it s just much more fast. we would say probably 90% of them have absolutely come here because of directly because of covid or because of complications that covid triggered. and, hallie, the vast majority of covid-19 cases are that fast-spreading omicron variant. erika, great to see you in the field. thank you. let me bring you into this conversation. a new fighting in boston showing the covid levels are dropping but some taking the sign that we re starting to peak on the current omicron surge. are you reading into that? other reasons why some of these numbers might be changing, as well. how much should we be putting stock in the waste water thing here? hallie, waste water is