Ill Health 2 : The term ill health includes acute and chronic physical or mental illness which can be caused or made worse by physical, chemical or biological agents, work activity or environment
Andrew Furness, Martin Muckett, Introduction to Fire Safety Management: The handbook for students on NEBOSH and other fire safety courses, Butterworth-Heinemann (Elsevier Ltd.), Oxford, UK 2007 (1st Ed.). (NEBOSH/ Fr Sfty Mgt - Brit) {5}