1 / 27

Understanding Infectious Diseases: Causes, Prevention, and Immunization

Learn about diseases caused by pathogenic organisms, including bacteria, viruses, rickettsias, protozoans, and fungi. Explore the spread of pathogens through people, animals, contaminated objects, and the environment. Understand the immune response, prevention measures, immunity, and immunization. Test your knowledge on vaccinations and common sense measures to stay healthy.

hartkathleen
Download Presentation

Understanding Infectious Diseases: Causes, Prevention, and Immunization

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. INFECTIOUS DISEASES Chapter 28 Lessons 1 & 3 7th Grade Corrie DiSalvo Diana Duque Kristin Hopkins Lizbeth Londono Marcela Morado

  2. Infectious Diseases Diseases caused by the growth of pathogenic organisms in the body

  3. Bacteria • A single-celled microorganism • Abundant in air, soil, and water • Harmful • Rapid Multiplication

  4. Viruses • Smallest known type of infectious agent • One of the worst enemies (HIV) • Unique Structure • Invades all forms of life

  5. Rickettsias • Way of Multiplying • Its Location • Transmission • Examples • Typhus and Rocky-Mountain spotted fever

  6. Protozoans • Single-celled organisms • 30 different types • Its Location

  7. Fungi • Simple organisms • Saprophytes • Prefers dark and damp environments • Invasion sites • Ex: ringworms or athlete's foot.

  8. Transmission Spread of infectious pathogens

  9. People • Direct contact • Ex. Hand shake, pregnant women to unborn child • Indirect contact • Ex. Cough, sneeze

  10. Animals • Dogs • Rabies • Mosquitoes • Malaria and dengue fever

  11. Contaminated Objects • Examples • Eating utensils • Glasses • Toothbrush • Door knobs • Pencils • Computer mouse

  12. Environment • Careless disposal of waste • Careless handling of foods • Pollution in air and water

  13. What’s wrong with this picture?

  14. Immune Response Nonspecific vs. Specific Resistance

  15. Nonspecific Resistance • Physical barriers • Mucus membranes and skin • Chemical barriers • Tears, saliva, and acidic digestive juices • Body cells • Phagocytes

  16. Specific Resistance • Lymphocytes • T-cells • B-cells • Antibodies • Macrophages

  17. Mission: Search and Destroy

  18. Prevention Immunity and Immunization

  19. Immunity • Active Immunity • The defense system the body develops to protect one from diseases • Passive Immunity • The temporary defense that an infant acquires from its mothers

  20. Immunization • Passive Immunization • Immediate, short lived protection • Active Immunization • vaccination

  21. Mother to baby Passive immunity Flu vaccine Active immunization Acute poisoning treatment Passive immunization Hepatitis A vaccine Active immunization Test Your Knowledge

  22. Test Your Knowledge Cont. 5. Tetanus vaccine • Active immunization 6. Chicken pox • Active immunity 7. Measles, mumps, and rubella vaccine • Active immunization

  23. Common Sense Measures • Hand washing

  24. Common Sense Measures • Good Nutrition • Regular exercise • Bathe or shower daily • Cover mouth when coughing or sneezing • Avoid contact with people who are sick • Avoid sharing of utensils

  25. Come out, Come out Wherever you are?

  26. Quick Review

  27. THE END

More Related