Welcome to ADPH's Influenza Surveillance website. ADPH is monitoring the strains circulating and where disease activity is reported.

Latest News

Looking for the top 10 things everyone can do to help prevent the flu? Do10!

For more information about who should and should not get the vaccine: Flu & Pneumonia Vaccines

Influenza in Alabama

  • During Week 11 (March 4-17), activity levels decreased across the state (2.6%)
  • Geographic spread was reported as regional to the Centers for Disease Control and Prevention (CDC)
  • To view the Influenza Survillance Map, click here
  • No PCR positive specimens were identified across the state
  • To view the latest trends in Alabama, click here
  • Click here to view Alabama's Weekly Influenza Report

Influenza in the U.S.

  • During Week 10 (March 4-10), activity levels decreased in the United States
  • Geographic spread was reported as widespread in Puerto Rico and 26 states; Guam and18 states reported regional activity; the District of Columbia and 5 states reported local activity; one state reported sporadic activity; and the U.S. Virgin Islands reported no activity
  • The percentage of respiratory specimens testing positive for influenza in clinical laboratories decreased
  • The proportion of outpatient visits for influenza-like illness (ILI) was 3.3%, which is above the national baseline of 2.2%
  • To view CDC's Fluview, click here

It is not too late to get vaccinated! For those who have not received their annual influenza shot, the quadrivalent vaccine, which protects against four (quad) strains, is the only vaccine available that provides protection against Influenza B (Yamagata). 

Influenza-Like Illness (ILI) Data

As part of the CDC’s U.S. Outpatient Influenza-Like Illness Surveillance Network (ILINet), healthcare providers in Alabama report the number of patients with ILI by age group and the total number of patients seen each week. ILI is defined as fever that is greater than or equal to 100 degrees Fahrenheit (37.8 degrees Celsius) AND cough and/or sore throat (in the absence of a known cause other than influenza). There is no requirement for a positive influenza test when determining the number of patients with ILI.

One outbreak of ILI or influenza was investigated in the Northern district this week. 

The chart below indicates ILI activity is decreasing through much of Alabama.


Influenza-like Illness (ILI) Data Reported to Alabama Department of Public Health (as of 03/17/2018)


Week Ending March 17

Week Ending March 10

Week Ending March 3


3.2 %

3.1 %

4.0 %


4.2 %

4.6 %

5.7 %

West Central

2.9 %

3.0 %

4.4 %


1.5 %

2.3 %

2.2 %

East Central

3.4 %

3.6 %

3.4 %


2.1 %

2.5 %

3.2 %


2.2 %

2.1 %

2.2 %


0.0 %

1.2 %

0.0 % 

*ILI threshold for significance in Alabama (Season 2017-18): 3.4%


If you are interested in becoming an ILINet participant, please email Infectious & Outbreaks Diseases Division, call 1-800-338-8374, or complete and fax the ADPH ILINet Application.

Viral Surveillance

ADPH's viral surveillance depends on hospitals and healthcare providers to voluntarily submit specimens from ILI patients to BCL throughout the year for influenza detection and subtype information. Influenza specimen submissions from healthcare providers help answer the questions of where, when, and what influenza viruses are circulating. ADPH requests that hospitals submit specimens for admitted patients with ILI and all physicians submit specimens for pregnant patients with ILI, as well as recent international travelers with ILI.

Any provider can submit influenza specimens for BCL testing. To find out more about ordering a flu kit, specimen collection, , and shipping instructions, see the Quick Guide for Influenza Specimen Submission or the detailed Guidance for Lab Testing for Influenza Viruses.

CDC Influenza Control and Outbreak Guidelines

Additional Information for Health Professionals

Page last updated: March 21, 2018