Acinetobacter baumannii genomes

Acinetobacter baumannii remains a pervasive nosocomial pathogen, with international clone 2 (IC2) being the most successful lineage. The general consensus is that IC2 is homogenous, and the genomic factors behind its success over other lineages is poorly characterized. This study aimed to track genomic changes occurring around the emergence of IC2 and further determine if IC2 can be split into subgroups. A set of historical A. baumannii isolates from the 1970s to early 2000s were long-read sequenced and assembled into high quality chromosomes, which were then used to supplement publicly available A. baumannii chromosomes.