Ch. 5  Sec. 3  Preventing Infectious Diseases
immunity <ul><li>body’s ability to destroy pathogens before they can cause disease </li></ul>
2 kinds of  immunity 1.  active 2.  passive
1. active immunity <ul><li>when person’s own immune system produces antibodies in response to presence of pathogen </li></...
 
 
 
vaccination <ul><li>process by which harmless antigens- deliberately introduced into person’s body    creates active immu...
 
 
Franklin D. Roosevelt in a wheelchair
 
2. passive immunity <ul><li>occurs when antibodies that fight pathogen come from another source rather than from person’s ...
 
<ul><li>chemical that kills bacteria or slows their growth without harming body cells </li></ul><ul><li>does NOT work on v...
 
Name  that  immunity
active immunity <ul><li>when person’s own immune system produces antibodies in response to presence of pathogen </li></ul>
passive immunity <ul><li>occurs when antibodies that fight pathogen come from another source rather than from person’s own...
passive immunity <ul><li>Only lasts few months </li></ul>
active immunity <ul><li>can last a lifetime </li></ul>
active immunity <ul><li>when person’s own immune system produces antibodies in response to presence of pathogen </li></ul>
passive immunity <ul><li>occurs when antibodies that fight pathogen come from another source rather than from person’s own...
passive immunity
passive immunity <ul><li>only lasts few months </li></ul>
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8th grade ch. 5 sec. 3 preventing infectious diseases

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8th grade ch. 5 sec. 3 preventing infectious diseases

  1. 1. Ch. 5 Sec. 3 Preventing Infectious Diseases
  2. 2. immunity <ul><li>body’s ability to destroy pathogens before they can cause disease </li></ul>
  3. 3. 2 kinds of immunity 1. active 2. passive
  4. 4. 1. active immunity <ul><li>when person’s own immune system produces antibodies in response to presence of pathogen </li></ul><ul><li>vaccination (immunization) </li></ul><ul><li>usually lasts for many years- sometimes for life </li></ul>
  5. 8. vaccination <ul><li>process by which harmless antigens- deliberately introduced into person’s body  creates active immunity </li></ul><ul><li>given by injection, mouth, nasal spray </li></ul>
  6. 11. Franklin D. Roosevelt in a wheelchair
  7. 13. 2. passive immunity <ul><li>occurs when antibodies that fight pathogen come from another source rather than from person’s own body </li></ul><ul><li>only lasts few months </li></ul>
  8. 15. <ul><li>chemical that kills bacteria or slows their growth without harming body cells </li></ul><ul><li>does NOT work on viruses </li></ul>
  9. 17. Name that immunity
  10. 18. active immunity <ul><li>when person’s own immune system produces antibodies in response to presence of pathogen </li></ul>
  11. 19. passive immunity <ul><li>occurs when antibodies that fight pathogen come from another source rather than from person’s own body </li></ul>
  12. 20. passive immunity <ul><li>Only lasts few months </li></ul>
  13. 21. active immunity <ul><li>can last a lifetime </li></ul>
  14. 22. active immunity <ul><li>when person’s own immune system produces antibodies in response to presence of pathogen </li></ul>
  15. 23. passive immunity <ul><li>occurs when antibodies that fight pathogen come from another source rather than from person’s own body </li></ul>
  16. 24. passive immunity
  17. 25. passive immunity <ul><li>only lasts few months </li></ul>

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