A study published in Emerging Infectious Diseases investigated the incidence of carbapenem-nonsusceptible Acinetobacter baumannii in the U. S. from 2012 through 2015.
Researchers conducted laboratory-and population-based surveillance in certain areas in Colorado, Georgia, Maryland, Minnesota, New Mexico, New York, Oregon and Tennessee. They collected carbapenem-nonsusceptible A. baumannii cultured from urine or normally sterile sites. They identified 621 cases in 537 patients.
The crude annual incidence was 1.2 cases per 100,000 persons. Among the 598 cases for which complete data were available, 98.7 percent occurred among patients with overnight stays in a hospital during the previous year. Around 84.6 percent occurred in patients who had an indwelling device.
"Although incidence was lower than for other healthcare-associated pathogens, cases were associated with substantial rates of illness and death," study authors concluded.