The Gram-negative short-rod-shaped (coccobacillus) A. baumannii thrives in a number of unaccommodating environments due to its tolerance to a variety of temperatures, pHs, nutrient levels, as well as dry environments.[1] The Gram-negative aspects of the membrane surface of A. baumannii, including the efflux pump and outer membrane, affords it a wider range of antibiotic resistance.[13] Additionally, some problematic A. baumannii strains are able to acquire families of efflux pumps from other species, and commonly first to develop new β-lactamases to improve β-lactam resistance.[13]