Life Science 6.1 : Disease

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Life Science 6.1 : Disease

  1. 1. Life Science Chapter 6<br />Body Defenses and Disease<br />Flu<br />
  2. 2. Life Science 6.1<br />Disease<br />Ebola Virus<br />
  3. 3. Objectives:<br />Explainthe difference between infectious diseases and noninfectious disease.<br />Identify five ways that you might come into contact with a pathogen.<br />Discuss four methods that have helped reduce the spread of disease.<br />Legionnaires’ Disease<br />
  4. 4. Causes of Disease<br />Noninfectious diseases <br />Some diseases, such as most cancers and heart disease, which are not spread from one person to another. <br />Infectious disease <br />Disease that can be passed from one living thing to another is an.<br />Caused by agents called pathogens.<br />Colon CancerCells<br />
  5. 5. Pathways to Pathogens<br />Air <br />Some pathogens travel through the air, such as when someone sneezes.<br />Contaminated Objects <br />Drinking glasses, doorknobs, keyboards, combs, and towels that have been used by an infected person can all pass pathogens.<br />Swine flu<br />
  6. 6. Person to Person <br />You can become infected with some illnesses by kissing, shaking hands, or touching the sores of an infected person.<br />Animals <br />Ringworm and Lyme Disease are carried by animals.<br />Food and Water<br />Bacteria growing in foods and beverages can cause illness.<br />Example : Salmonella<br />Salmonella<br />Ring worm<br />
  7. 7. Putting Pathogens in Their Place<br />Pasteurization <br />The method of using heat to kill bacteria.<br />Vaccines and Immunity<br />The ability to resist or recover from an infectious disease is called immunity.<br />A vaccine is a substance that helps your body develop immunity to a disease.<br />Antibiotics <br />Substance that can kill bacteria or slow the growth of bacteria.<br />

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