College of Veterinary Medicine at Illinois

U of I logo Department of Pathobiology

Geographic Information Systems and Spatial Analysis Laboratory

Prediction of Mosquito Infection with West Nile Virus in Chicago, IL

West Nile Virus: What do we expect this year?

West Nile Virus (WNV) was first observed in the Chicago, Illinois, region in 2001, and there has been evidence of mosquito infection in each of the following years. Here we ask the question:

What is our best estimate of mosquito infection for this week and the next three weeks?

The current week (38) is from 13 September 2014 to 19 September 2014. Weather is updated through 12 September 2014. Last update: 9/15/2014

We estimate mosquito infection with statistical models that use rainfall and temperature in northeastern Illinois. Based on our work, we have considered why some years have higher infection rates than others. Also, we can estimate future infection rates based on weather data from past weeks. Click on the graphs to learn more. Our page for previous years can be found here: 2013 : 2012 : 2011