... caused by a variety of reasons for example, poor marital relations, debt, poor living conditions and physical abuse. At work shift work, workplace violence, inadequate staffing heavy workload, increases in patient dependency. Biological - these hazards are infectious or biological agents such as bacteria, viruses, fungi or parasites that may be transmitted by contact with infected patients/people or contaminated body secretions/fluids. Examples in hospitals are the Human immunodeficiency virus (HIV), Vancomycin resistant enterococcus (VRE), Methicillin resistant staphylococcus aureus (MRSA), Clostridium difficile, Hepatitis B and C viruses and Tuberculosis. At home the threat of the above is also present. In healthcare and at home poor storage, preparation of food can cause food poisoning. Physical - these are agents within the work or home environment that can cause tissue trauma for example radiation, lasers, noise, electricity, extreme temperatures, violence not all of these would be applicable to the home environment. Environmental/ mechanical - ...

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