PulseNet is essential for several reasons: - Early Detection: It allows for the early detection of outbreaks, often before they become widespread. - Source Identification: By identifying DNA matches, PulseNet helps trace the source of contamination, whether it be a specific food product or a processing plant. - Prevention: It aids in implementing measures to prevent further cases by identifying and removing contaminated products from the market. - Surveillance: Continuous monitoring helps in understanding the epidemiology of foodborne pathogens and their patterns over time.