Maryland Resident Influenza Tracking Survey


Welcome to the new on-line version of the Maryland Resident Influenza Tracking Survey (MRITS). MRITS is a system designed to measure influenza-like illness (ILI) in Maryland based on illness reported directly by residents each week. While most influenza surveillance systems rely heavily on information submitted by health care providers, MRITS allows those who might not contact their provider to offer complementary information to estimate the level of flu activity in the State.

Survey Access

Sign Up

If you have not signed up to participate in MRITS, please take a few moments to do so by Registering to Participate.

Log In

If you have already signed up to participate, please click here to Log In. You will need to know the e-mail address you used to sign up and your month and year of birth. 

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Survey News


The Maryland Resident Influenza Tracking Survey has its own Facebook page. If you have a Facebook account, you can be a fan of MRITS by Clicking Here.


The first reporting week of the 2015-2016 influenza season extends from September 29 through October 5, 2015. Reporting will begin October 6th. Please visit our influenza surveillance and epidemiology page at to read the latest news on influenza activity.