General Overview of <i>Klebsiella pneumonia</i>: Epidemiology and the Role of Siderophores in Its Pathogenicity
2024
Rim Abbas | Mohamed Chakkour | Hiba Zein El Dine | Eseiwi Folorunsho Obaseki | Soumaya T. Obeid | Aya Jezzini | Ghassan Ghssein | Zeinab Ezzeddine
The opportunistic pathogen <i>Klebsiella pneumoniae</i> (<i>K. pneumoniae</i>) can colonize mucosal surfaces and spread from mucosae to other tissues, causing fatal infections. Medical equipment and the healthcare setting can become colonized by <i>Klebsiella</i> species, which are widely distributed in nature and can be found in water, soil, and animals. Moreover, a substantial number of community-acquired illnesses are also caused by this organism worldwide. These infections are characterized by a high rate of morbidity and mortality as well as the capacity to spread metastatically. Hypervirulent <i>Klebsiella</i> strains are thought to be connected to these infections. Four components are critical to this bacterium’s pathogenicity—the capsule, lipopolysaccharide, fimbriae, and siderophores. Siderophores are secondary metabolites that allow iron to sequester from the surrounding medium and transport it to the intracellular compartment of the bacteria. A number of variables may lead to <i>K. pneumoniae</i> colonization in a specific area. Risk factors for infection include local healthcare practices, antibiotic use and misuse, infection control procedures, nutrition, gender, and age.
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