AcinetobacterSkin Colonization of US Army Soldiers

Abstract

Objective.To evaluate whether skin colonization withAcinetobacter calcoaceticus-baumanniicomplex exists in a population of healthy, nondeployed US Army soldiers and, if present, how it might relate to the infections seen in current war casualties.Design.We sampled various skin sites of soldiers to test for the presence ofA. calcoaceticus-baumanniicomplex and to establish the prevalence of colonization. We then used ribotyping and antimicrobial susceptibility profiles to compare the isolates we recovered withA. calcoaceticus-baumanniicomplex isolates from injured soldiers.Setting.Fort Sam Houston, Texas.Participants.A population of healthy, nondeployed US Army soldiers in training.Results.A total of 17% of healthy soldiers were found to harborA. calcoaceticus-baumanniicomplex. However, the strains differed from those recovered from injured soldiers.Conclusions.Skin carriage ofA. calcoaceticus-baumanniicomplex exists among soldiers before deployment. However, the difference in the strains isolated from healthy soldiers, compared with the strains from injured soldiers, makes it difficult to identify skin colonization as the source of infection.