disinfection


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disinfection

 [dis″in-fek´shun]
the act of disinfecting, using specialized cleansing techniques that destroy or prevent growth of organisms capable of infection.
terminal disinfection disinfection of a sick room and its contents at the termination of a disease.

dis·in·fec·tion

(dis'in-fek'shŭn),
Destruction of pathogenic microorganisms or their toxins or vectors by direct exposure to chemical or physical agents.

dis·in·fec·tion

(dis-in-fek'shŭn)
Destruction of pathogenic microorganisms or their toxins or vectors by direct exposure to chemical or physical agents.

disinfection

To use chemical substances to kill bacteria and other infecting agents outside the body or on the skin. Such substances include hexachlorophene, benzalkonium, cetrimide, phenol, merthiolate and various alcohols.

disinfection

the use of a DISINFECTANT to destroy, inactivate or remove MICROORGANISMS that are likely to cause infection, spoilage or other undesirable effects in an inanimate object. Disinfection does not normally involve STERILIZATION.

disinfection

The process or act of destroying pathogenic microorganisms. However, certain bacterial spores may survive and germinate which could lead to contamination. See antiseptic; sterilization; surfactant.
chemical disinfection A method of disinfecting soft contact lenses, using solutions containing either a preservative or hydrogen peroxide. Preservatives include chlorhexidine, thimerosal (very rarely used nowadays) and more commonly nowadays the preservatives with larger molecules which cannot penetrate into the lens matrix of soft contact lenses, such as the biguanide polyhexanide (polyaminopropyl biguanide or polyhexamethylene biguanide). Hydrogen peroxide has a broad-spectrum efficacy against bacteria, fungi and viruses. It must, however, be neutralized before the lens can be worn. Rigid gas permeable contact lenses are disinfected with a preservative such as chlorhexidine, benzalkonium chloride, polyhexanide and polixetonium chloride. Failure to disinfect contact lenses may lead to microbial keratitis. Disinfectants for contact lenses have to pass FDA and International Organization for Standardization (ISO) tests to be approved. They must be effective against three specific bacteria (Pseudomonas aeruginosa, Staphylococcus aureus and Serratia marcescens) and two fungi (Candida albicans and Fusarium solani). See neutralization.
heat disinfection A method of disinfecting soft contact lenses, based on heating the lens to a temperature of at least 80º for 10 minutes. This is achieved in specially manufactured heating units in which the lenses are kept in physiological saline solution. However, repeated boiling of soft lenses may cause some degradation of the lens material, and tear mucoproteins that have not been previously removed with a surface cleaning agent tend to become coagulated on the lens surface.

dis·in·fec·tion

(dis-in-fek'shŭn)
Destruction of pathogenic microorganisms or their toxins or vectors by direct exposure to chemical or physical agents.
References in periodicals archive ?
coli K12 photocatalytic inactivation by TiO2: implications in solar water disinfection. Appl Catal B Environ.
In cloudy weather, longer exposure times of up to 48 hours may be necessary to achieve adequate disinfection.
The survey found that time appears to be the real stumbling block to improvement, with two-thirds of producers identifying the time required as the biggest drawback of routine cluster disinfection.
When monitoring water for dialysis, QC measurements showing an increasing trend in counts may be used to adapt the maintenance schedule, for example by initiating a disinfection
"Our customers will benefit by having access to universally accepted UV disinfection results that are delivered in a much more efficient and reliable manner."
Following a public bid process conducted by the city, in conjunction with the Nevada State Health Division and engineering consultant CH2M Hill, Aquionics, and Hanovia were chosen to supply a new state-of-the-art UV water disinfection system.
In the proper concentration, disinfection should be complete after the water has been in contact with the chlorine about twenty minutes.
Alcohol is an effective alternative when water or towels are not readily available, or when there is a need for rapid hand disinfection. Alcohol is more effective than aqueous antiseptic solutions, but a preliminary wash is always needed for soiled hands.
As part of the facility upgrade, the City's plans included the removal of an existing disinfection system that used chlorine as the prime disinfection mean and replacing it with an environmentally friendly ultraviolet disinfection system.
The FDA in a rule published March 28 set allowable levels of disinfectants and disinfection byproducts in bottled drinking water.
Disinfection to eliminate chemical and microbiological contaminants has become common practice as a result.
Proper cleaning and disinfection of poultry houses is part of a good management program for small backyard flocks and large commercial flocks alike.