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Infectious Disease

Infectious Disease. Pathogen: An organism that causes disease Infectious disease: Something you “catch” A pathogen has gotten into your body and made you sick. Kinds of pathogens. Viruses Bacteria Fungi Mold, yeast, fungus Can cause athletes foot, ringworm Protists

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Infectious Disease

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Presentation Transcript

  1. Infectious Disease • Pathogen: An organism that causes disease • Infectious disease: • Something you “catch” • A pathogen has gotten into your body and made you sick

  2. Kinds of pathogens • Viruses • Bacteria • Fungi • Mold, yeast, fungus • Can cause athletes foot, ringworm • Protists • Single celled organisms with a nucleus • Malaria, amebic dysentery

  3. How Pathogens are spread • Read your assigned section on how pathogens are spread and complete the notes for that section • Get together with your assigned group of 4 and teach your group about your section

  4. Infected People • Pathogens can be spread from person to person by direct contact. • An example of direct contact: • Kissing someone with a open cold sore allows the cold sore virus into your body • Explain how “indirect contact” can make spread disease and give an example: • A person with the flu sneezes, sending virus droplets into the air, which other people can inhale

  5. Soil, Food, and water • Some pathogens occur naturally in the environment. • Explain how a person can become sick from food or water: • By eating or drinking something that has been contaminated with a pathogen • What is an example of a disease that is spread through food or water: • Cholera, dysentary

  6. Contaminated Objects • Explain how a person can become sick by contaminated objects: • By touching something that has been handled by an infected person • Explain how a person gets tetanus: • By stepping on a contaminated object

  7. Infected Animals • Explain how a person can be infected by an animal: • By being bitten by an animal that is carrying a disease • What diseases do ticks carry? • Rocky Mountain Fever, Lymes Disease • What type of a PATHOGEN is malaria caused by (it is carried by mosquitoes, but what causes it)? • Protists

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