Healthcare-Associated Infections: Healthcare Personnel Influenza Vaccination

Reportable by Providers

About this Reportable Healthcare-Associated Infection (HAI)

Reportable Event:  Healthcare-Associated Infections: Healthcare Personnel Influenza Vaccination

Description of illness: Influenza (flu) is a contagious respiratory illness caused by influenza viruses. It can cause mild to severe illness. Serious outcomes of flu infections can result in hospitalization or death. Some people, such as older people, young children, and people with certain health conditions, are at high risk of serious flu complications. 

This disease/condition should be reported through the National Healthcare Safety Network (NHSN).

Information about this Reportable Disease for Healthcare Providers

Clinical Summary

  • Tennessee requires certain healthcare facility types to report healthcare personnel influenza vaccination data to support statewide HAI surveillance and prevention efforts, using CDC NHSN reporting pathways.
  • CDC NHSN HCP influenza vaccination reporting is submitted via the Healthcare Personnel Safety (HPS) Component and uses standardized numerator/denominator categories for healthcare personnel groups included in reporting.
  • Annual reporting is aligned to the influenza vaccination season (commonly October 1–March 31) and relies on NHSN data collection forms/instructions for consistent counting (including categories such as vaccinated, medically contraindicated, declined, unknown, etc.).
  • CDC provides operational guidance and FAQs for summary reporting (including facility-type requirements and submission deadlines when applicable to CMS programs), supporting internal validation and timely submission in NHSN.

Healthcare Provider Reporting

Healthcare reporting requirements apply to all providers located within Tennessee, as well as providers whose patients reside in Tennessee.

Providers must report cases of all diseases and conditions listed through one of these methods:

• Mail or fax a completed PH-1600 form to your local health department or fax to the state health office at (615) 741-3857

• Send automatically via electronic case reporting (eCR). See this TDH webpage for more information on eCR, register at the Trader Partner Registration website, or contact MU.Health@tn.gov for assistance.

• Submit online via NBS. NBS is TDH's reportable disease system. To request an NBS account for reporting Complete this user survey to request an NBS account for reporting. 

• Blood lead levels can be sent via fax ( (615) 741-3857), entered online, or reported using the instructions at this link. 

Information about this Reportable Disease for the Public

What It Is

Healthcare personnel (HCP) influenza vaccination reporting tracks the percentage of people working in healthcare settings who received a seasonal flu vaccine during the influenza season. Tennessee requires certain facility types to report HCP influenza vaccination data as part of healthcare-associated infection (HAI) surveillance.

Why It Matters

Influenza (flu) is a contagious respiratory illness that can cause mild to severe disease, including hospitalization and death, especially in people at higher risk. Vaccinating healthcare personnel helps protect patients, coworkers, and communities and supports safer care environments.

Who Is Counted in Healthcare Reporting

CDC’s National Healthcare Safety Network (NHSN) HCP influenza vaccination measure includes multiple groups of healthcare personnel (for example, employees and certain non-employee staff categories reported by facilities) to standardize how vaccination coverage is calculated and compared.

How Reporting Works

Facilities report annual HCP influenza vaccination summary data through CDC’s NHSN Healthcare Personnel Safety (HPS) Component for the defined influenza vaccination season (commonly October 1 through March 31), using NHSN’s standardized forms and instructions.

What the Public Can Do

Patients and families can ask healthcare facilities about flu vaccination expectations for staff and can reduce their own risk by staying up to date on seasonal flu vaccination and practicing everyday prevention steps (hand hygiene, staying home when sick).

This Page Last Updated: March 25, 2026 at 8:53 PM