Viruses, Bacteria, and Your Health. I. How infectious diseases spread A. Infected person 1....

Viruses, Bacteria, and

Your Health

I. How infectious diseases spread A. Infected person

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

1. foods (poultry, meat, eggs) 2. soil

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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. – a. many bacteria have become resistant to

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III. Preventing infectious disease A. Vaccine

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 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 A. Caused by viruses

1. rabies 2. measles 3. colds/flu 4. chicken pox 5. AIDS

B. Caused by bacteria 1. food poisoning 2. strep throat 3. lyme disease 4. tetanus 5. tuberculosis






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Viruses, Bacteria, and Your Health. I. How infectious diseases spread A. Infected person 1....

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