Acinetobacter Infections By Larry M Bush, MD, FACP, Charles E Schmidt College of Medicine, Florida Atlantic University; Maria T Vazquez-Pertejo, MD, FACP, Wellington Regional Medical Center Reviewed / Revised Sep 2022 View Patient Education Diseases Caused by Acinetobacter Treatment Key Points Topic Resources Risk Factors for Acinetobacter... Acinetobacter species are gram-negative organisms that can cause suppurative infections in any organ system; these bacteria are often opportunists in hospitalized patients.