Clinical burden of Acinetobacter baumannii, including carbapenem-resistant A. baumannii, in hospitalized adult patients in the USA between 2018 and 2022

Presence of A. baumannii was identified on a clinical culture in 1% of adult hospitalizations in this multicenter US study. Over a third of A. baumannii hospitalization encounters were CRAB, with the highest incidence rates per 100 hospitalization encounters observed in the most central US regions. Clinicians should consider A. baumannii as a potential pathogen in patients in regions with an increasing incidence rate of A. baumannii.