One sneeze at the barn door can ripple through an entire system. We sit down with Dr. Emily McDowell of Pipestone Veterinary Services to dig into one of the most fixable pathway in swine respiratory disease: human influenza spilling over into pigs. Rather than chasing every virus already circulating in herds, we focus on the front door—how people, air, and tools move—and show why simple, consistent controls can slash introductions and keep productivity steady.

We break down the practical moves that work under real barn pressure. Think sick-day policies that don’t punish crews, quick symptom checks during community spikes, and on-site flu shots that reduce shedding. We talk air and surfaces too: balanced ventilation where possible, portable HEPA in entry spaces and wipe-down routines for high-touch tools and screens. Dr. McDowell explains how to match vaccination strategy to diagnostics, when to step up PPE, and how to use surveillance data to guide short-term actions like cohorting or limiting cross-room movement. Throughout, we spotlight “low-hanging fruit” that pay off quickly—extra handwash sinks placed before animal contact, clear clean/dirty zoning, labeled tools, and visitor protocols that are easy to follow and hard to ignore.

What ties it all together is culture. When supervisors model the rules, signage sits where decisions happen, and crews have comfortable gear at arm’s reach, good biosecurity becomes the path of least resistance. The result is fewer human-origin introductions, less clinical flu in pigs, and a tighter handle on costs tied to treatment, performance dips, and downtime.

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