Within the family of Enterobacteriaceae, few species have evolved in parallel with the history of clinical microbiology and infectious diseases as closely as Klebsiella pneumoniae. First described in 1882 as an encapsulated bacillus causing fatal community-acquired pneumonia (CAP),[1] it has since evolved into a major cause of healthcare-associated infections (HAIs) and a global driver of antimicrobial resistance (AMR), reflecting a profound transformation in its clinical identity over more than a century[2,3].
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Ghanem et al. (2026) studied this question.
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