Chromosomal integration of blaCTX-M redefines the evolutionary trajectory of antibiotic resistance in E. coli through lineage-structured expansion
Maxime Danjean, Thibaut Morel‐Journel, Valentine Berti, Yasmine Benhadid-Brahmi, Signara Gueye, Christelle Lougbegnon, Hervé Jacquier, Érick Denamur, Stephane Bonacorsi, Patricia Siguier, François Cornet, Manuel Campos, Marie Petitjean, André Birgy, Laurence Armand-Lefèvre
The paper identifies chromosomal integration of blaCTX-M in E. coli, showing lineage-specific prevalence and suggesting it contributes to the spread of antibiotic resistance.
bioRxiv · Oct 8, 2026 · PreprintMicrobiology