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Updated: Aug 9, 2026

A Method to Test the Efficacy of Handwashing for the Removal of Emerging Infectious Pathogens
Published on: June 7, 2017
Creating a manual for proper hand hygiene and its clinical effects
Shinya Kusachi1, Yoshinobu Sumiyama, Youichi Arima
1Third Department of Surgery, Toho University School of Medeicine, 2-17-6 Ohashi, Tokyo 153-8515, Japan.
A new hand hygiene manual effectively reduced hospital-acquired infections. Implementing clear guidelines for handwashing and glove use significantly decreased methicillin-resistant Staphylococcus aureus (MRSA) cross-infections in patients with infectious wounds.
Area of Science:
- Infectious Diseases
- Hospital Epidemiology
- Microbiology
Background:
- Healthcare-associated infections, particularly those caused by methicillin-resistant Staphylococcus aureus (MRSA), pose a significant challenge in clinical settings.
- Effective infection control strategies are crucial to prevent the transmission of resistant bacteria between patients and healthcare workers.
Purpose of the Study:
- To develop and evaluate a manual for the treatment of infectious wounds, emphasizing hand hygiene protocols to prevent cross-infections.
- To clarify specific guidelines for handwashing and glove use among healthcare staff treating patients with infectious wounds.
Main Methods:
- A protocol involving a hand hygiene manual was implemented for six patients with widespread MRSA-infected wounds.
- Bacterial counts on healthcare staff hands were measured before and after hand hygiene, and after patient treatment.
- The incidence of MRSA isolation in patients was monitored before and after the manual's implementation.
- MRSA isolates were typed using pulsed-field gel electrophoresis (PFGE) to assess strain relatedness.
Main Results:
- Pathogenic bacterial counts on staff hands significantly decreased from 8.2 x 10 cfu/hand before hygiene to undetectable levels after hygiene.
- Post-treatment hand hygiene reduced bacterial counts from 9.1 x 10(5) cfu/hand to 0.38 cfu/hand.
- The rate of MRSA isolation among patients decreased from 3.7% (15/402) to 1.2% (5/411) after the manual's implementation.
- PFGE analysis indicated a reduction in the diversity of MRSA strains post-implementation, with five isolates showing distinct migration patterns compared to 13 pre-implementation strains.
Conclusions:
- A structured hand hygiene manual is an effective intervention for reducing cross-infection rates in clinical settings.
- Clear protocols for handwashing and glove use are essential for controlling the spread of multidrug-resistant organisms like MRSA.
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