Influenza Activity in Shelby County TN
October 28, 2020
Welcome to the Shelby County Health Department seasonal influenza surveillance page. Data on influenza like illness will be displayed. Data will be posted weekly the seasonal activity picks up and then we will update this page every 2 - 3 days. Please see the end of the page for a more detailed explanation of this data. Thank you and be safe.
Influenza activity is low at this time. The percent of ED visits for last week is 1.9%, lower than this same week last year at 3%
Currently adults ages 25-49 years are visiting the ED most for ILI with 0-4 year old the second highest age group
Sentinel Provider Network - Week 42 (Oct 11-Oct 17)
Outpatient providers reporting ILI Activity
This data is retrieved from the Tennessee Department of Health ILI Surveillance Summary
The data shared here is Emergency Department visits, outpatient visits and the number of positive flu tests from local providers.
Influenza like illness (ILI) is defined as: Fever >100◦ plus cough and/or sore throat with no other known cause (for example strep throat).
Coronavirus like illness (CLI) is defined as symptom terms, free text, or discharge diagnoses specified by the Centers for Disease Control and prevention that are likely to be related to illness caused by the 2019 Novel Coronavirus. The visits within these criteria will contain a percentage of illnesses caused by conditions other than novel coronavirus infection. This data is considered preliminary and are not confirmed diagnoses of the disease.
Influenza is not a reportable condition, so any data collected is voluntarily provided by community members.
Not all Emergency Department (ED) visits published here are diagnosed as influenza; some are discharged with a diagnosis of rhinovirus, bronchitis, or other upper respiratory infection.
The ED data is retrieved from the Electronic Surveillance System for the Early Notification of Community-based Epidemics (ESSENCE-TN). Currently, 11 out of the 12 ED's in Shelby County submit data to ESSENCE-TN. Off-season ILI is included for baseline comparison.
Outpatient visit data is collected by the CDC's Sentinel Provider Network and reported to Tennessee Department of Health weekly.
Some local providers also voluntarily report the number of positive flu tests. This data is presented in a table.
For information about infection prevention, national activity or detailed information about the influenza virus, please visit the CDC Influenza page. For information about influenza activity in Tennessee please visit the TN Department of Health web page.