Legionnaires' Disease Lord WALLACE of COSLANY asked Her Majesty's Government:What steps are being taken to advise industrial undertakings of recommended precautionary measures against Legionnaires' Disease. Lord CULLEN of ASHBOURNE The advice about Legionnaires' Disease which the Health Departments intend to issue to health authorities will be brought to the attention of Medical Officers for Environmental Health, who will then be able to give any necessary advice to local industrial and other undertakings.