Skip to main content

Measles cases are on the rise globally and here in Illinois the number is increasing as well. Vaccines are 97% effective in preventing this highly contagious disease.  To learn more about this infection and get information on vaccination, go to https://dph.illinois.gov/topics-services/diseases-and-conditions/diseases-a-z-list/measles.html.  Learn how to identify measles and the safe and effective vaccine that can prevent this potentially life-threatening infection for adults and children. 

About IDPH

Human Tickborne Disease Incidence Maps

Reported Incidence Rate of Anaplasmosis By County, 2012-2021

Additional Data

Average incidence rates as reported to IDPH, per 100,000 persons per year.

Cases are reported by county of residence, which is not always where the infection was acquired.

Rates were calculated using the 2020 U.S. Census.

Reported Incidence Rate of Ehrlichiosis By County, 2012-2021

Additional Data

Average incidence rates as reported to IDPH, per 100,000 persons per year.

Cases are reported by county of residence, which is not always where the infection was acquired.

Rates were calculated using the 2020 U.S. Census.

Reported Incidence Rate of Lyme Disease By County, 2012-2021

Additional Data

Average incidence rates as reported to IDPH, per 100,000 persons per year.

Cases are reported by county of residence, which is not always where the infection was acquired.

Rates were calculated using the 2020 U.S. Census.

Reported Incidence Rate of Spotted Fever Group Rickettsiosis By County, 2012-2021

Additional Data

Average incidence rates as reported to IDPH, per 100,000 persons per year.

Cases are reported by county of residence, which is not always where the infection was acquired.

Rates were calculated using the 2020 U.S. Census.

Additional Data

Reported Incidence Rate of Anaplasmosis By County, 2012-2021

County Anaplasmosis Reported Incidence Rate per 100000 Population

Reported Incidence Rate of Ehrlichiosis By County, 2012-2021

County Ehrlichiosis Reported Incidence Rate per 100000 Population

Reported Incidence Rate of Lyme Disease By County, 2012-2021

County Lyme Disease Reported Incidence Rate per 100000 Population

Reported Incidence Rate of Spotted Fever Group Rickettsiosis By County, 2012-2021

County Spotted Fever Group Rickettsiosis Reported Incidence Rate per 100000 Population