PATTERNS OF HEALTHCARE-ASSOCIATED INFECTIONS ACROSS ACUTE CARE HOSPITALS.

Main Article Content

Dr Rajesh Kumar Rajvanshi
Dr Benika Kajla.

Keywords

healthcare-associated infections, acute care hospitals, antimicrobial resistance, infection surveillance, infection prevention

Abstract

Healthcare-associated infections (HAIs) remain a major patient-safety challenge in acute care hospitals, where invasive procedures, vulnerable patient populations, antimicrobial exposure, and complex care pathways create sustained opportunities for transmission. This review synthesizes current evidence on the epidemiology, major infection types, etiological profiles, determinants, surveillance approaches, diagnostic advances, and prevention strategies associated with HAIs. The burden varies widely across regions, hospital units, and patient groups, with intensive care, surgery, prolonged hospitalization, and device use consistently associated with higher risk. Central line-associated bloodstream infections, catheter-associated urinary tract infections, ventilator-associated pneumonia, surgical site infections, and Clostridioides difficile infection remain prominent, while multidrug-resistant bacteria, opportunistic fungi, and biofilm-forming organisms increasingly complicate management. HAI patterns arise from interacting patient, microbial, environmental, workforce, and institutional factors. Electronic surveillance, molecular diagnostics, whole-genome sequencing, and artificial intelligence offer important gains in detection and outbreak investigation, although their implementation depends on data quality, infrastructure, and technical capacity. Effective control continues to rely on hand hygiene, device stewardship, environmental cleaning, antimicrobial stewardship, staff education, audit and feedback, and accountable leadership. Future progress will require integrated, context-sensitive prevention programs that link surveillance directly to action and ensure equitable access to both established and emerging technologies.


 


 

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