State Activity Indicator Map. Additional Information. What CDC Does. To receive weekly email updates about Seasonal Flu, enter your email address: Email Address. What's this? Links with this icon indicate that you are leaving the CDC website. Though flu is out there in certain states including Mississippi and Texas, the United States continues to experience an unusually mild flu season. Most states are reporting minimal flu activity, according to the latest flu report from the Centers for Disease Control and Prevention CDC.
Mississippi is experiencing moderate flu activity, with most cases occurring in the city of Jackson. South Carolina and Nevada are reporting higher than minimal activity. Currently, estimates predict Texas is also experiencing an uptick in flu activity, according to a flu surveillance map from Walgreens based on prescription data for influenza antiviral medications. Two influenza-associated deaths were reported in Georgia last week, and Alabama reported a slight increase in flu cases around the holidays.
Arkansas reported its eighth flu-related death this week. Delaware reported its first flu-related death of the season last week. The uncharacteristically low levels of flu observed across the country can likely be attributed to the mitigation measures used for COVID, said Dr.
Other regions do not have increased ILI and virus activity is no greater than sporadic in those regions. Regional This level of activity does not apply for small states with 4 or fewer regions. Care should be given when relying on results of point of care rapid diagnostic test kits during times when influenza is not circulating widely. The sensitivity and specificity of these tests vary and the positive predictive value may be low outside the time of peak influenza activity.
Therefore, a state may wish to obtain laboratory confirmation of influenza by testing methods other than point of care rapid tests for reporting the first laboratory confirmed case of influenza of the season. During periods of elevated influenza activity, the positive predictive value of rapid point of care tests will be higher.
A region could be comprised of 1 or more counties and would be based on each state's specific circumstances. Reported data are used to strengthen local and national surveillance, monitor trends in infection rates, assist in identifying resource insecurities, and inform progress toward infection prevention goals.
CMS requires all certified nursing homes to report once a week, by Sunday at midnight. Influenza data elements include:. Of note, data collection week for this component is shifted one day compared to the other national influenza surveillance system components and runs from Monday to Sunday rather than Sunday through Saturday. This change should have minimal impact on the weekly numbers and will not affect monitoring trends over time. Hospitalization Surveillance. FluSurv-NET conducts population-based surveillance for laboratory-confirmed influenza-related hospitalizations in children younger than 18 years of age since the influenza season and adults since the influenza season.
FluSurv-NET data including hospitalization rates for multiple seasons and different age groups and data on patient characteristics such as virus, type, demographic, and clinical information are available on FluView Interactive. The data are reported to the HHS Protect ecosystem, a secure platform for authentication, amalgamation, and sharing of healthcare information and are made available on the HHS Protect Public Data Hub external icon.
Currently, hospitals from all 50 states and U. The detailed list of reported data elements are provided here pdf icon external icon.
For the season, the influenza variables will include:. The numbers of new hospital admissions with laboratory-confirmed influenza virus infection reported to HHS Protect are aggregated by week at the national and HHS region level. New hospital admissions are defined as patients who were admitted to an inpatient bed on the previous calendar day and had a positive influenza test at admission or during the 14 days prior. Laboratory confirmation includes detection of influenza virus infection through molecular tests e.
For hospital reporting, laboratory-confirmed influenza is defined as influenza A or B. Mortality Surveillance. Deaths included in this component of the U. Data are aggregated by the week of death occurrence. NCHS surveillance data are released one week after the week of death and percentages for earlier weeks are continually revised and may increase or decrease as new and updated death certificate data are received by NCHS.
This is because the proportion of pneumonia deaths associated with influenza is now influenced by COVIDrelated pneumonia. The PIC percentage, number of influenza deaths, and number of COVID deaths are presented in order to help better understand the impact of these viruses on mortality and the relative contribution of each virus to PIC mortality. An increase of 1. Data displayed on the regional and state-level are aggregated by the state of residence of the decedent.
Influenza-Associated Pediatric Mortality Surveillance System — Influenza-associated pediatric mortality became a nationally notifiable condition in For surveillance purposes, an influenza-associated pediatric death is defined as a death in a person less than 18 years of age, resulting from a clinically compatible illness that was confirmed to be influenza by an appropriate laboratory diagnostic test.
There should be no period of complete recovery between the illness and death. Demographic and clinical information is collected on each case and reported to CDC. Information on influenza-associated pediatric deaths including basic demographics, underlying medical conditions, bacterial co-infections, and place of death, is available on FluView Interactive for the current and past seasons.
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