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Viruses, Bacteria, and Your Health I. How infectious diseases spread A. Infected person QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. 1. touching, kissing, inhaling droplets of sneezes or coughs can transfer the virus or bacteria. B. Contaminated object 1. eating, drinking utensils used by an infected person can transfer the viruses or bacteria to other people. C. Infected animal 1. bites (from mosquitoes, ticks, or other animals) transfer bacteria or viruses into our bloodstream. D. Environment QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. 1. foods (poultry, meat, eggs) 2. soil QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. II. Treating infectious diseases A. Viral disesase 1. NO CURES 2. Medicines treat the symptoms (runny nose, cough, fever) 3. Only your immune system can rid your body of a virus. B. Bacterial disease 1. Antibiotics - kill bacteria without harming our own cells. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. – a. many bacteria have become resistant to antibiotics III. Preventing infectious disease A. Vaccine QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. 1. An altered virus injected into our body. 2. Our immune system switches on and learns to recognize it. 3. Can fight it off quickly if you ever get the real thing. B. Staying healthy QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. 1. eat nutritious foods 2. get lots of rest, fluids, and exercise 3. wash hands often 4. store and cook foods properly IV. Common diseases QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. A. Caused by viruses 1. rabies 2. measles 3. colds/flu 4. chicken pox 5. AIDS QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncomp resse d) de com press or are nee ded to s ee this picture. B. Caused by bacteria 1. food poisoning 2. strep throat 3. lyme disease 4. tetanus 5. tuberculosis Quic kTime™ and a TIFF (Unc ompres sed) dec ompres sor are needed to see this pic ture.