High-Resolution Genomic Profiling of Campylobacter jejuni Across Human, Livestock, and Yellow-Legged Gull Reservoirs in Croatia Reveals Lineage Segregation and Shared Environmental Genotypes
It is demonstrated that, while most yellow-legged gull isolates constitute host-adapted lineages, gulls also harbor overlapping genotypes shared with livestock and clinical human isolates, compatible with shared ecological niches and common contamination sources rather than direct bird-to-human transmission.