Which of the following is NOT one of PulseNet's four functions?

• A. Develops vaccines for foodborne pathogens
• B. Maintains an electronic database of outbreak reports
• C. Compares data from across the country to identify clusters
• D. Monitors outbreaks from Campylobacter, Cronobacter, Escherichia coli and other STEC, Salmonella, Listeria, Shigella, Vibrio cholerae, and Vibrio parahaemolyticus

Answer: (A)

PulseNet is a surveillance network that detects and tracks foodborne illness outbreaks by using DNA fingerprinting to compare bacterial isolates across laboratories nationwide. Its main activities include maintaining an electronic database of outbreak-related fingerprints and reports, enabling real-time data sharing among labs, and performing cross-jurisdictional comparisons to identify clusters that indicate outbreaks. It monitors outbreaks from major pathogens such as Campylobacter, Cronobacter, E. coli (including STEC), Salmonella, Listeria, Shigella, and various Vibrio species. Vaccine development is not part of PulseNet’s role; vaccines are developed by public health agencies and manufacturers, while PulseNet focuses on detection and surveillance.