§ Mr. Galleyasked the Secretary of State for Social Services what studies his Department has undertaken, in the light of recent outbreaks of Legionnaire's disease, into the efficacy of biocides as a means of eliminating Legionella bacteria in water cooling systems.
§ Mr. HayhoeNone.
Reports on the investigation of the recent outbreaks of the disease in Stafford and Scotland have not yet been completed. I am advised that none of the reported outbreaks of the disease world wide has been associated with a water cooling system that has received regular conventional treatment with chlorine. However, my Department's officials are looking at the possibilities for developing a protocol for manufacturers on the in vitro testing of biocides.