Laboratory Results: Results are presented by the date a sample was tested, if this data is unavailable it is reported by the date the result was reported to the Utah Department of Health. Laboratory positives may not match confirmed cases due to ongoing investigations, confirmatory testing, and reporting lag.
Percent Positivity (Person/Person): Percent positivity based on the total number of unique individuals who tested positive divided by the total unique number of people tested (i.e., the number of people tested positive over the number of people tested). This method does not account for people who have had repeat positive or negative tests in the past 90 days. This is the method the State of Utah used to report percent positivity from the beginning of the pandemic through February 11, 2021.
Percent Positivity (Test/Test): Percent positivity based on the total positive tests divided by the total number of tests administered (i.e., the number of all positive tests over the number of all tests in a day). This method accounts for people who have repeat positive or negative test results and more accurately reflects an increase in testing. This is the method used by the State of Utah to report percent positivity starting February 18, 2021.