1. COMMUNICABLE
DISEASE

2. Communicable diseases are diseases caused by the direct and indirect spread of pathogens from one person to another.

3. Use these sources to research the information
United States National Library of Medicine Medline Plus Center for Disease Control and Prevention

4. What are pathogens?
Disease producing organisms

5. TYPES OF PATHOGENS
BACTERIA
FUNGI
PROTOZOANS
WORMS
VIRUSES

6. Multiply rapidly - 1 = 4 billion in 15 hours Most are harmless
Bacteria
Microscopic
Multiply rapidly - 1 = 4 billion in 15 hours
Most are harmless
Must have a food supply, suitable temp.,moisture, and darkness

7. Is E. coli Bacteria Good or Bad?

8. Resident Bacteria- Live in your mouth, intestines, and skin THEY ARE GOOD FOR YOU !!!

9. Poisons caused by bacteria Examples are:
Toxins
Poisons caused by bacteria
Examples are:
Food poisoning, strep throat, T/B, pneumonia.

10. One of your bodies worst enemies
No Cure
Very specific cell invaders
Rabies/ Brain
Polio/ Nervous System
HIV/Immune system

11. Fungi
Prefer dark, damp environments
Invade mainly hair, nails and skin
Examples are Ringworm and Athletes Foot

12. PROTOZOANS Common in tropical areas that have poor sanitation.
Examples are Malaria - Malaria is a mosquito-borne infectious disease of humans and other animals. It begins with a bite from an infected female mosquito, which introduces the protozoan through saliva into the circulatory system.

13. __Worms__ Flatworms invade the blood Tapeworms live in the intestines
Roundworms infect the intestines, muscles, and fluids under the skin
Example is trichinosis / infected pork

14. How are these
pathogens
spread ?

15. INDIRECT CONTACT
Coughing
Sneezing
Touching infected objects

16. DIRECT CONTACT
STD’s
KISSING

17. CONTACT WITH ANIMALS OR INSECTS

18. Fortunately our bodies have defense mechanisms against diseases

19. ANTIBODIES- Are proteins released into the blood to destroy or neutralize a specific pathogen.

20. BEHAVIORS TO AVOID COMMUNICABLE DISEASES
Bathe or shower daily
Avoid sharing utensils
Store and Prepare food safely
Wash your hands
Avoid contact with sick people
Eat well
Exercise
Get enough rest

21. Vaccines Provide active or long term immunity Dead or weakened viruses
LIVE-weakened
KILLED-requires booster
TOXOIDS-chemically treated
RECOMBANT-cloned virus

22. ACTIVE IMMUNITY-body develops usually long lasting PASSIVE-mother to child, short term

23. YOU CAN BECOME IMMUNE TO A DISEASE IN 2 WAYS.
By having it already
Vaccines