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Introduction Proteus hauseri belongs to the genus Proteus and is closely related to Proteus mirabilis. Although rarely isolated, it remains an important organism in clinical microbiology. Moreover, researchers consider it a separate species based on genetic and phenotypic characteristics. Notably, it was named to honor microbiologist Viktor Hauser. Additionally, its clinical significance remains under investigation. However, it can be isolated from human and environmental samples. Furthermore, its identification requires careful differentiation from other Proteus species. Thus,...

Introduction Aerococcus viridans is a gram-positive coccus. It rarely infects humans. However, it thrives in hospital environments and the air. Moreover, it causes urinary tract infections, endocarditis, and bacteremia. For example, laboratories isolate it from urine, blood, and other specimens. Therefore, clinicians must understand its features. Specifically, it remains catalase-negative and oxidase-negative. Consequently, it is mistaken for other bacteria. Similarly, it resembles streptococci on blood agar. However, advanced methods help identify it accurately. Finally, Aerococcus viridans...

Introduction of Morganella morganii subspecies morganii Morganella morganii subspecies morganii is an opportunistic Gram-negative bacterium. Furthermore, it inhabits the human gastrointestinal tract. It colonizes hospital environments and causes infections in compromised hosts. Moreover, clinicians report its involvement in urinary tract and wound infections. Additionally, it emerges in postoperative and nosocomial cases. Researchers monitor its antibiotic resistance closely. Consequently, its clinical impact grows steadily. Furthermore, the bacterium adapts well to different environments. Additionally, the infection rate increases in...