Acinetobacter baumannii strain AB139

Acinetobacter baumannii strain AB139 is a Gram-negative, rod-shaped bacterium that is classified as a chemoheterotrophic aerobe, indicating it relies on organic compounds for energy and requires oxygen for growth. This strain is non-motile and does not possess flagella, which may influence its ecological interactions. Acinetobacter baumannii strain AB139 is notably mesophilic, with an optimal growth temperature of 37°C, which aligns closely with human body temperature. This bacterium has a complex habitat, being capable of surviving in multiple environments, and is characterized by a free-living biotic relationship. It possesses a single replicon and has a double membrane structure typical of Gram-negative bacteria. Acinetobacter baumannii strain AB139 is particularly significant in clinical microbiology due to its pathogenicity in humans. It is associated with a range of severe health effects, including bacteremia, necrotizing fasciitis, bloodstream infections, urinary tract infections, and hospital-acquired pneumonia. The strain is implicated in both healthcare-associated and community-acquired infections, affecting not only humans but also other hosts such as Gallus gallus (chickens) and Bos taurus (cattle). The ecological insight drawn from the traits of Acinetobacter baumannii strain AB139 underscores its adaptability and opportunistic nature, allowing it to thrive in diverse environments and establish itself as a significant pathogen in both hospital and community settings. Its prevalence in nosocomial infections highlights the need for ongoing surveillance and control measures in healthcare facilities.