THE IMPORTANCE OF MEDICAL STERILIZATION AND INFECTION CONTROL
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Keywords

Sterilization; Infection control; Hospital-acquired infections; Medical disinfection; Autoclave sterilization; Dry heat sterilization; Chemical sterilants; Ethylene oxide gas; Hydrogen peroxide plasma; Aseptic technique; Antisepsis; Microbial contamination; Surgical instrument processing; Sterile supply management; Personal protective equipment (PPE); Hand hygiene; Environmental sanitation; Cross-infection prevention; Sterility assurance level (SAL); Medical waste management; High-level disinfection; Pathogen transmission control; Clinical microbiology; Patient safety protocols.

Abstract

Medical sterilization and infection control constitute the core foundation of safe medical practice and patient protection. In modern healthcare systems, the risks associated with microbial contamination, cross-infection, and hospital-acquired infections (HAIs) remain among the most significant global health challenges. Sterilization aims at the complete destruction of microorganisms, including highly resistant bacterial spores, viruses, fungi, protozoa, and prions. Infection control, in turn, is a broad, systematic approach that involves hygiene discipline, environmental sanitation, aseptic protocols, proper use of personal protective equipment, safe waste disposal, ventilation systems, antibiotic stewardship, outbreak management, and continual monitoring programs. As patient volume, surgical procedures, and invasive diagnostic interventions increase worldwide, the need for strict sterilization procedures becomes more critical. The growing threat of antimicrobial resistance adds further urgency to improving sterilization technologies and adherence to infection control protocols. Modern sterilization includes autoclaving, dry heat, ethylene oxide gas sterilization, hydrogen peroxide plasma sterilization, ozone sterilization, peracetic acid processing, and gamma irradiation. Infection control encompasses hand hygiene, PPE, surface disinfection, isolation precautions, environmental microbiological surveillance, and high-level reprocessing systems.This paper presents a comprehensive and deep analysis of the scientific basis, technological applications, and public health importance of sterilization and infection control. It also examines international guidelines from WHO, CDC, and ECDC, exploring their relevance to modern clinical practice. The review concludes that integrated sterilization and infection control programs significantly reduce morbidity, mortality, economic costs, and outbreaks in healthcare institutions.

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References

1. World Health Organization (WHO). Decontamination and Reprocessing of Medical Devices for Health-care Facilities. Geneva: WHO Press, 2016.

2. Centers for Disease Control and Prevention (CDC). Guideline for Disinfection and Sterilization in Healthcare Facilities. Atlanta, USA, 2019.

3. Rutala, W. A., & Weber, D. J. Disinfection and Sterilization: An Overview. American Journal of Infection Control, 2013.

4. Association for the Advancement of Medical Instrumentation (AAMI). ANSI/AAMI ST79: Comprehensive Guide to Steam Sterilization and Sterility Assurance in Health Care Facilities. 2020.

5. Spaulding, E. H. Chemical Disinfection and Sterilization. In: Lawrence & Block (eds). Disinfection, Sterilization and Preservation. Philadelphia: Lea & Febiger, 1991.

6. McDonnell, G., & Burke, P. The Challenge of Sterilization: A Review of the Fundamentals and Current Issues. Journal of Hospital Infection, 2011.

7. European Committee for Standardization (CEN). EN ISO 17665-1: Sterilization of Health Care Products—Moist Heat. 2006.

8. Alfa, M. J. Automated Washer-Disinfectors: Performance and Microbiological Aspects. American Journal of Infection Control, 2015.

9. Rutala, W. A., Weber, D. J. Role of the Environment in Disease Transmission. Infection Control & Hospital Epidemiology, 2016.

10. Periago, M. R., & Fernandez, A. Hygiene, Disinfection and Sterilization in Surgery Units. Journal of Surgical Research, 2019.

11. World Health Organization (WHO). Core Components of Infection Prevention and Control Programmes. 2017.

12. Mehta, Y., et al. Guidelines for Prevention of Healthcare-Associated Infections. Indian Journal of Critical Care Medicine, 2014.

13. Sehulster, L., & Chinn, R. Guidelines for Environmental Infection Control in Healthcare Facilities. CDC, 2003.

14. Kanemitsu, K., et al. Effectiveness of Physical and Biological Indicators in Sterilization Monitoring. Journal of Infection and Chemotherapy, 2018.