This retrospective study examines poultry erysipelas outbreaks in Sweden from 1998 to 2023, focusing on the disease's emergence in commercial laying hens following transitions to non-cage housing systems. It integrates pathological findings, farmer interviews, and whole-genome sequencing to characterize clinical features, evaluate intervention efficacy, and analyze the molecular epidemiology of Erysipelothrix rhusiopathiae.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/). Published in Avian Pathology.