About PulseNet

For Everyone

What to know

  • PulseNet is a national laboratory network that uses DNA fingerprinting to identify bacteria making people sick and detect potential outbreaks.
  • There is at least one PulseNet laboratory in every state as well as an international network.
Final USA PulseNet logo

Overview

PulseNet is a national laboratory network consisting of 83 public health and food regulatory laboratories. PulseNet gathers information into a national database to identify bacteria making people sick and detect potential outbreaks.

PulseNet is a national laboratory network that connects foodborne, waterborne, and One Health–related illness cases to detect outbreaks. PulseNet uses the DNA fingerprints of bacteria making people sick to detect thousands of local and multistate outbreaks.

Since the network began in 1996, PulseNet has improved food safety systems through identifying outbreaks early. This allows investigators to find the source, alert the public sooner, and identify gaps in food safety systems that would not otherwise be recognized. PulseNet International performs a similar role for foodborne illnesses globally.

Mission

To connect foodborne illness cases together using the DNA 'fingerprints' of the bacteria making people sick in order to detect outbreaks.

History

PulseNet was developed in response to the 1993 Escherichia coli O157:H7 outbreak that caused more than 700 people to get sick, and four deaths. CDC determined outbreaks could be identified sooner if all public health laboratories could perform the same DNA fingerprinting on bacteria from patients.

For Public Health PulseNet Timeline

How it impacts lives

PulseNet is effective because all of the laboratories in the network identify foodborne bacteria in real time. PulseNet, along with other foodborne surveillance systems, is the best tool for detecting problems within the food safety systems that may otherwise go unnoticed.

Identifying problems allows CDC to take rapid action, identify the contaminated food(s), and remove it from the market. Long term, PulseNet and public health partners can pinpoint defective food manufacturing processes which can be changed to make the food supply safer.

PulseNet saves lives, time, and money

1+ billion
pounds of contaminated foods have been recalled thanks to PulseNet

Foodborne outbreak detection by PulseNet has led to safer food handling and cleaner production facilities for many foods such as:

  • Beef
  • Leafy greens
  • Peanut products
  • Sprouts
  • Ready-to-eat foods
  • Poultry
  • Flour
  • Deli meats
  • And more!
For Public Health PulseNet: Today and Beyond

Contacts

Content Source
National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)
About This Page
Published:
Updated: August 31, 2026

This page was last updated on this date. Updates may include minor edits, image changes, or other modifications to page content.

Reviewed: September 9, 2026

The information on this page was last reviewed by subject matter experts to ensure accuracy.