Impact of prescribed cleaning and disinfectant use on microbial contamination in the home

Aims:  To identify and quantify the presence of Escherichia coli, Staphylococcus aureus, Salmonella, hepatitis A and norovirus in households and to assess the effect of chlorine and quaternary ammonium–based disinfectants following a prescribed use. Methods and Results:  Eleven sites distributed in...

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Bibliographic Details
Published in:Journal of applied microbiology 2011-02, Vol.110 (2), p.463-471
Main Authors: Medrano‐Félix, A., Martínez, C., Castro‐del Campo, N., León‐Félix, J., Peraza‐Garay, F., Gerba, C.P., Chaidez, C.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Chlorine - pharmacology
Disinfectants - pharmacology
disinfection
Disinfection - methods
enteric viruses
Escherichia coli
Escherichia coli - isolation & purification
Fundamental and applied biological sciences. Psychology
Hepatitis A virus
Hepatitis A virus - isolation & purification
home hygiene
Household Articles
Household Products - microbiology
Mexico
Microbiology
Norovirus
Norovirus - isolation & purification
pathogens
Quaternary Ammonium Compounds - pharmacology
Salmonella
Salmonella - isolation & purification
Staphylococcus aureus
Staphylococcus aureus - isolation & purification
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Summary:Aims:  To identify and quantify the presence of Escherichia coli, Staphylococcus aureus, Salmonella, hepatitis A and norovirus in households and to assess the effect of chlorine and quaternary ammonium–based disinfectants following a prescribed use. Methods and Results:  Eleven sites distributed in kitchen, bathroom, pet and children′s areas of two groups of 30 homes each: (i) a nonprescribed disinfectant user group and (ii) a disinfectant protocol user group. During the 6‐week study, samples were collected once a week except for week one when sample collection occurred immediately before and after disinfectant application to evaluate the disinfectant protocol. The concentration and occurrence of bacteria were less in the households with prescribed use of disinfectants. The greatest reductions were for E. coli (99%) and Staph. aureus (99·9999%), respectively. Only two samples were positive for HAV, while norovirus was absent. Disinfection protocols resulted in a significant (P 
ISSN:1364-5072
1365-2672
DOI:10.1111/j.1365-2672.2010.04901.x