since we started vaccinating children, one child who was fully vaccinated admitted to the hospital and that was a patient with multiple co-morbidities and risk factors for severity. about 75% of our cases and 50% of hospitalizations currently are children under the age of 5. so children that aren't eligible to be vaccinated yet. in chicago, about 70% of children between age 5 and 11 are not yet vaccinated. so that's an opportunity for us to expand vaccination in our community and further reduce hospitalizations. >> so you're seeing realtime evidence that the vaccines prevent children from getting serious covid and having to go to the hospital? >> absolutely. we think because the majority of our infections we're seeing are in children not yet vaccinated. we're seeing realtime evidence that the vaccine is showing protection against the omicron variant for mild or moderate infections in this age group and substantially effective for