Fundamental to controlling infection transmission in the home is the need to recognise it as an environment where all human activities occur, including food hygiene, hand hygiene and hygiene related to care of vulnerable groups. In recent years the concept of a risk assessment/risk reduction approach to hygiene has successfully controlled microbial risks in food and other manufacturing environments.
To deliver hygiene policy with real health benefits it is now accepted that a risk-based approach must also be developed for the home. The first step, hazard characterisation, involves identifying sites and surfaces where pathogens most frequently occur, and whether they are likely to be present in numbers that represent an infectious dose. A risk assessment is then made by considering this information together with an assessment of the probability of human exposure to the hazard. Risk reduction is achieved by application of a suitable hygiene procedure at the appropriate time.
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