2023-2024 Texas Influenza Surveillance Activity

DSHS has combined the individual weekly flu, RSV, and COVID-19 surveillance reports into one report effective Friday, January 19, 2024. The combined report will be titled the Texas Respiratory Virus Surveillance Report. The combined report contains all the data from the three individual reports and will be posted every Friday on the Texas Respiratory Virus Surveillance Report page.

The extended Texas Influenza Surveillance Report is available in the previous PDF format:

Week 1 Flu Activity Report (PDF)
(December 31, 2023 – January 6, 2024)
Report produced on 1/12/2024

2023-2024 Season/2023 MMWR Week 1

Please note: The 2023-2024 influenza season began on October 1, 2023.

Reports from the 2022-23 season

Summary

*This report excludes COVID-19 data. For information about COVID-19 in Texas visit COVID-19.
Compared to the previous week, the percentage of specimens testing positive for influenza reported by hospital laboratories has increased. The percentage of patient visits due to influenza-like illness (ILI) has decreased. One influenza-associated pediatric death was reported. Three influenza-associated institutional outbreaks were reported in a long-term care facilities.

Table 1: Summary of Texas Influenza (Flu) and Influenza-like Illness (ILI) Activity for the Current Week

Texas Influenza and Influenza-like Illness Surveillance Component	Previous Week Change	Current Week	Previous Week^†	Report Page
Statewide ILINet Activity Indicator assigned by CDC (intensity of influenza-like illness)	No change	Very High	Very High	-
Percentage of specimens positive for influenza by hospital laboratories	▲ 2.71%	25.38%	22.67%	1
Percentage of visits due to ILI (ILINet)	▼ 0.37%	6.91%	7.28%	4
Number of regions reporting increased flu/ILI activity	No change	4	4	6
Number of regions reporting decreased flu/ILI activity	No change	4	4	6
Number of variant/novel influenza infections	No change	0	0	6
Number of ILI/influenza outbreaks	▲ 2	3	1	6
Number of pediatric influenza deaths	▲ 1	1	0	7
†Data displayed have been updated since last week's flu report with any new reports received.

Texas Map Displaying the Highest Level of Influenza or ILI Activity Reported by County for the Week Ending January 6, 2024 (MMWR Week 1)

Statewide Influenza Activity Map:

2024 Flu Activity Week 1 Map Please note: The majority of influenza cases are not reportable by law in Texas. This map contains data from sentinel sites and only displays influenza and ILI cases that were reported to public health. Positive laboratory results are reported according to specimen collection date, or date received in the laboratory if the former is unknown.