Transmission dynamics of an antimicrobial resistant Campylobacter jejuni lineage in New Zealand’s commercial poultry network

• DOI: 10.1016/j.epidem.2021.100521
• Publication Date: 2021-11-08T16:44:57Z
• Authors: Sabrina S. Greening; Ji Zhang; Anne C. Midwinter; David A. Wilkinson; Ahmed Fayaz; Deborah A. Willia...; Marti J. Anderson; M. Carolyn Gates; Nigel P. French
• Keywords: Flock; Geographical distance; Poultry farming; Horizontal transmission

Understanding the relative contribution of different between-farm transmission pathways is essential in guiding recommendations for mitigating disease spread. This study investigated association between contact linking poultry farms New Zealand and genetic relatedness antimicrobial resistant Campylobacter jejuni Sequence Type 6964 (ST-6964), with aim identifying most likely that contributed to its rapid spread across industry. Whole-genome sequencing was performed on 167C. ST-6964 isolates sampled from 30 commercial enterprises. The determined using whole genome multilocus sequence typing (wgMLST). Permutational multivariate analysis variance distance-based linear models were used explore strength relationship pairwise associations among C. each several distance matrices, indicating either geographical or network transportation vehicles. Overall, a significant found parent company, road transporting feed result suggests within industry as well other local contacts flocks, such movements personnel, may have played role jejuni. However, further information historical patterns needed fully characterise risk these understand how they could be targeted reduce