Acinetobacter baumannii strain Ab21

Acinetobacter baumannii strain Ab21 is a Gram-negative, rod-shaped bacterium that exhibits characteristics typical of a heterotrophic chemoheterotroph. It thrives in various habitats, demonstrating its versatility as a free-living organism. The strain does not possess mobility, as it lacks flagella, and exists as single cells. Acinetobacter baumannii is classified as an aerobe, requiring oxygen for its metabolic processes, and it displays optimal growth at 37°C, functioning within a mesophilic temperature range. This bacterium is notable for its pathogenicity in humans, where it is implicated in a range of serious health effects including bacteremia, necrotizing fasciitis, bloodstream infections, urinary tract infections, and hospital-acquired pneumonia. It is also associated with severe infections resulting from traumatic injuries and respiratory tract infections, contributing to healthcare-associated infections and community-acquired infections. The strain's ability to thrive in hospital environments makes it a significant concern in clinical settings, as it can lead to nosocomial infections. Acinetobacter baumannii strain Ab21 has a single replicon and a double membrane structure, characteristic of its Gram-negative classification. Its presence in both humans and various animal hosts, such as Gallus gallus (chickens) and Bos taurus (cattle), reflects its ecological adaptability and potential for zoonotic transmission. This adaptability underscores the importance of monitoring and controlling this pathogen, especially in healthcare environments, to mitigate its impact on public health.