Community-Acquired Infections by Highly Virulent Acinetobacter Pittii: A Study of Molecular Characteristics and Literature Review

Background: Acinetobacter Pittii, a Gram-negative bacterium, is widely prevalent in the natural environment. It is a non-fermentative bacterium commonly found in various settings such as soil, water, and healthcare facilities. Furthermore, Acinetobacter Pittii can also colonize the skin, respiratory tract, and digestive tract of both humans and animals. Historically, Acinetobacter Pittii has been recognized as a nosocomial pathogen, exhibiting multidrug resistance that presents a significant challenge in the healthcare field. However, instances of community-acquired infections, particularly severe infections, have been relatively limited. This article presents a case study of severe pneumonia and septic shock caused by a highly virulent community-acquired strain of Acinetobacter Pittii. The patient also developed multiple lung nodules and cavities, further highlighting the pathogenicity of this strain. The study delves into the treatment regimen employed, as well as the virulence and molecular characteristics of this particular strain. Case presentation: Report of the case of community-acquired human pulmonary infection caused by Acinetobacter Pittii. Conclusions: Community-acquired Acinetobacter Pittii, characterized by its high virulence and intense inflammatory response, can lead to severe infections, resulting in septic shock, disease progression, and the potential development of Pulmonary nodules and cavities. Clinical physicians should give due attention to this condition.