Looking at the group’s Illinois data also showed a potential irregularity. IHME’s charts listed the state as having one new death from COVID-19 on Tuesday, but the state announced 73 new deaths that day. IHME representatives told the Tribune the group’s model retrieves death data from another organization and it may have lags in reporting. IHME has adjusted its model to lessen the effect of such lags, they said, though adding that they could not say how different the prediction would have been without lags.