22. Dartford and Gravesham National Health Service Trust. Policy on the Cleaning and Disinfection of Toys, 2004.

23 Environ Health Associates, INC. Norovirus Outbreak Control Guidelines, 2004.

24. Randle J, Fleming K. The risk of infection from toys in the intensive care setting. Nursing Standard 2006; 20: no. 40.

25. Community Care Facilities Branch, Ministry of Planning, Victoria, BC. Preventing Illness in Child Care Settings, 2003.

26. Public Health Protection Division, United Kingdom. Infection Control Guidance for Nurseries, Playgroups and other Childcare Setting, 2006.

27. Centre for Health Protection, Department of Health. Guidelines on Prevention of Communicable Diseases in Child Care Centres, Kindergartens and Schools, 2004.

28. Infection Control Branch, Centre for Health Protection, Department of Health. Guideline for Environmental Decontamination(Advanced Draft), 2007

29. Public Health and Manicipal Services Ordinance 132 CA: Swimming Pools Regulation, Section 9, Changing of Water, 2000

30. Food and Environmental Hygiene Department. Guidelines on Prevention of Breeding of Blood Worms in Swimming Pool, 2006. Available at http://www.fehd.gov.hk/safefood/risk-pest-arthropod_mos.html  on  19 December 2007.

31. Public Health and Manicipal Services Ordinance 132 CA: Swimming Pools Regulation, Section 10, Quality of Water, 2000

32. Victorian Government Department of Human Services. Health Guidelines for Personal Care and Body Art Industries, 2004

33. Hospital Authority. Guidelines on Management of Hydrotherapy & its Facilities., 2007.

34. Standard Australia AS 3979 Hydrotherapy pools, the Victorian Rehabilitation, 1993