Related Experiment Video
Updated: Mar 21, 2026

A Method to Test the Efficacy of Handwashing for the Removal of Emerging Infectious Pathogens
Published on: June 7, 2017
Effectivity of antiseptics against some pathogens
Aneta Guzek1, Zbigniew Rybicki2, Dariusz Tomaszewski2
1Department of Laboratory Diagnostics. Military Institute of Medicine, Warsaw, Poland.
The 2% alcoholic solution of chlorhexidine demonstrated the highest efficacy against hospital-acquired pathogens, including bacteria and fungi. This finding is crucial for selecting optimal antiseptic agents in preventing healthcare-associated infections.
Area of Science:
- Microbiology
- Infectious Diseases
- Antiseptic Efficacy
Background:
- Antiseptic effectiveness varies significantly between bacterial and fungal pathogens.
- Optimal antiseptic selection is critical for preventing hospital-acquired infections.
Purpose of the Study:
- To evaluate the comparative efficacy of different antiseptic solutions.
- To identify the most effective antiseptic for common hospital-acquired pathogens.
Main Methods:
- Utilized the disc diffusion method, analogous to antibiotic sensitivity testing.
- Tested antiseptics against key pathogens: Klebsiella pneumoniae (ESBL+), Acinetobacter baumannii, Pseudomonas aeruginosa, Staphylococcus aureus (MRSA), and Candida dublinensis.
Main Results:
- The 2% alcoholic solution of chlorhexidine exhibited the greatest antimicrobial activity.
- Inhibition zone size correlated with antiseptic efficacy against the tested pathogens.
Conclusions:
- Chlorhexidine (2% alcoholic solution) is the most effective antiseptic tested in this study.
- Results guide the selection of antiseptics for enhanced infection control protocols.
Related Concept Videos
Antimicrobial Effectiveness
Hand hygiene
Hand washing...
Chemical Agents for Microbial Control
Surface Membrane Barriers
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
Biological Methods for Microbial Control
Clinical Significance of Antibiotic Resistance

