Global equine influenza surveillance networks enable rapid vaccine strain updates and outbreak response that protect horse populations from predictable welfare harm.
Equine influenza surveillance is a model for proactive welfare protection in horse populations. Rather than responding to outbreaks after horses have suffered, surveillance networks detect antigenic drift that predicts reduced vaccine coverage before outbreaks occur. The welfare benefits of well-matched vaccines are substantial — horses with good immunity experience dramatically reduced disease severity when exposed. Global surveillance depends on diagnostic laboratory participation and strain sharing, which require sustained public and private investment to maintain the information flow that enables timely vaccine updates.