Which Enterobacteriaceae is primarily responsible for hospital-acquired infections?

Which Enterobacteriaceae is primarily responsible for hospital-acquired infections?

• A. Shigella dysenteriae
• B. Klebsiella pneumoniae
• C. Yersinia pestis
• D. Salmonella enteritidis

Answer: (B)

Klebsiella pneumoniae is primarily responsible for hospital-acquired infections due to its ability to survive in healthcare environments and its association with various serious infections such as pneumonia, bloodstream infections, and infections associated with catheters and ventilators. This bacterium possesses antibiotic resistance mechanisms that complicate treatment, making it a significant concern in hospitals. In contrast, other members of the Enterobacteriaceae family listed in the options are not predominantly associated with nosocomial infections. Shigella dysenteriae, for example, is mainly linked to gastrointestinal diseases and outbreaks in community settings. Yersinia pestis is infamous for causing the plague, primarily linked to zoonotic transmission rather than hospital acquisition. Salmonella enteritidis typically causes foodborne illness and is not as strongly associated with nosocomial infections in the same way Klebsiella pneumoniae is. Thus, its characteristics and behaviors make Klebsiella pneumoniae the foremost pathogen associated with hospital-related infections.

Klebsiella pneumoniae is primarily responsible for hospital-acquired infections due to its ability to survive in healthcare environments and its association with various serious infections such as pneumonia, bloodstream infections, and infections associated with catheters and ventilators. This bacterium possesses antibiotic resistance mechanisms that complicate treatment, making it a significant concern in hospitals.

In contrast, other members of the Enterobacteriaceae family listed in the options are not predominantly associated with nosocomial infections. Shigella dysenteriae, for example, is mainly linked to gastrointestinal diseases and outbreaks in community settings. Yersinia pestis is infamous for causing the plague, primarily linked to zoonotic transmission rather than hospital acquisition. Salmonella enteritidis typically causes foodborne illness and is not as strongly associated with nosocomial infections in the same way Klebsiella pneumoniae is. Thus, its characteristics and behaviors make Klebsiella pneumoniae the foremost pathogen associated with hospital-related infections.