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Download Topic: Infection L1: Communicable Diseases
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Topic: Infection L1: Communicable Diseases Learning Objectives: 1. Describe what communicable disease is. 2. Describe what a pathogen is and the different types. 3. Describe how disease is spread. 4. Explain how to prevent the spread of infection. 5. Describe examples of diseases caused by different pathogens. Vocabulary List: Topic 3 • Pathogen Writing Task • Microorganism/microbe Write a summary paragraph using all • Communicable disease these terms correctly. • Infect/infectious • Bacterium/bacteria • Virus • Protists – single celled, eukaryotic organism that can cause disease • Fungus/fungi Pathogens • Pathogens are microorganisms that cause disease. • Types of pathogens: • Bacteria • Viruses • Fungi • Protozoa/Protist Cells Size Comparison (Put the pathogens in order from smallest to largest) fungus Spread of Disease • Communicable diseases can spread to plants and animals from infected organisms. • Organisms are infected when pathogens enter the body, reproduce, and make the organism ill. How does infection spread? a) b) c) d) e) f) Direct contact Food Water Air Vectors (animal host) Exchange of Bodily Fluids Preventing the Spread of Disease • Good hygiene • Example: washing your hands • Deal with vectors • Destroy • Protect against them • Quarantining • Isolating infected individuals • Vaccination • Become immune to disease Different Pathogens and Different Diseases Read the information on pg. 124-128 and fill in the table summarising the differences between pathogens and the diseases they cause.