Ann Clin Microbiol 2024;27(3):171-177. Roles of clinical microbiology in hospital environmental cleaning and disinfection: a narrative review

Table 2. Guidelines for environmental disinfection, strongly recommended by KDCA with high-moderate level of evidence [14].
TitleGuideline
Principles of environmental surface management

Medical institutions periodically clean and disinfect environmental surfaces by applying consistent methods to provide a safe and hygienic environment to patients. 
Regulations and procedures for environmental management includes:

  1. Environmental management scope
  2. Routine and after discharge cleaning/disinfection
  3. Cleaning/disinfection of isolation room

Frequent contact surfaces that are frequently touched or likely to be used are cleaned and disinfected more frequently. High-touch surfaces include bed railing, bed table, call bell, door handles, washbasin handles, and tops. Clean and disinfect non-hazardous items or environmental surfaces periodically.

Principles of disinfectantsNo category IA recommendation
Principles of methodsPrepare procedures for cleaning and disinfecting the environment of medical institutions. Clean and disinfect the environment systematically to avoid retaining infectious microbes. The environmental cleaning and disinfection cycle shall be determined after considering the risk of infection to employees, patients, and visitors in relation to surface contamination. Risk assessments include the degree of contamination, frequency of contact, and vulnerability of infection of the subject. Examples of daily environmental surfaces are floors, walls, and tables. They are cleaned and disinfected periodically with disinfectants certified by authorized agencies, reported, and registered, and immediately when there is visible contamination. Cleaning and disinfection by route of transmission may be enhanced in frequency compared to routine cleaning and disinfection, and if necessary, the level of disinfection may be enhanced. The isolation room shall be disinfected daily using disinfectants effective against microorganisms of patients subject to isolation.
Disinfection of high-touch surfacesNo category IA recommendation
Disinfection of diarrheagenic pathogenMedical institutions comply with contact precautionary measures for cleaning and disinfection necessary for the prevention of C. difficile, Norovirus, Rotavirus, VRE, and CPE transmission. Establish policies and procedures for routine cleaning and disinfection of rooms for isolation ward areas in contact state and post-discharge cleaning and disinfection.
Disinfection of CPENo category IA recommendation

Abbreviations: KDCA, Korea Disease Control and Prevention Agency; VRE, vancomycin-resistant enterococci; CPE, carbapenemase-producing Enterobacterales.