The University of Oxford 's Centre for Evidence-Based Medicine maintains an ongoing review of both CFR and IFR estimates , and as of 9 April they estimated a CFR of 0.72 % , but they also caution that there is considerable uncertainty at this stage in the pandemic .
The University of Oxford 's Centre for Evidence-Based Medicine is conducting a continuous review of both CFR and IFR estimates but warns that there is unreliability at this stage in the coronavirus pandemic .