BioSec Industry Briefing — Wednesday, November 4, 2026

BioSec Bob here on Wednesday, November 4, 2026 — let’s dig into today’s briefing.
Starting out West, the Carmichael Times is reporting avian influenza confirmed in two backyard poultry flocks in Sacramento County, California. Both operations have been quarantined. State officials are conducting epidemiological investigations to determine the source and scope of exposure. Producers in the region should remain alert for any clinical signs in their birds and report suspected cases immediately to their state veterinarian.
On the research side, WATTPoultry.com is covering a significant discovery in chicken immune function that could reshape vaccine development. Scientists have identified new mechanisms in how chickens mount protective immune responses. The finding opens pathways for more effective vaccines against major poultry diseases. The work’s implications could eventually strengthen flock health across commercial operations nationwide.
Shifting to the swine side now — the Western Producer reports that zinc oxide levels in starter piglet diets will remain unchanged for the near term. Regulatory agencies reviewed current usage standards and determined no modification is warranted at this time. The decision provides continuity for producers currently using zinc oxide as part of their nursery feeding programs.
The USDA’s got a timely reminder this morning about African swine fever risk during travel season. The agency identified five vacation activities that substantially increase the likelihood of accidentally introducing ASF to U.S. operations — including visits to swine farms abroad, consumption of undercooked pork products in infected regions, and contact with wild boar populations. Travelers working in agriculture are urged to observe strict biosecurity protocols when returning home.
Finally, out of Capitol Hill, 95.1 The Bull reports a bipartisan bill is moving to strengthen protections against swine diseases across U.S. herds. The legislation aims to enhance disease surveillance infrastructure and emergency response capacity. Lawmakers from both parties have signaled support for improved funding and coordination among state and federal animal health agencies.
Keep your herd health protocols sharp this week.