1. Pathogens

2. 4 types
Virus
Bacteria
Fungi
Protozoa

3. Virus The smallest and simplest Pathogen
Examples include: Common Cold, Influenza, Chicken Pox, Measles, etc.
Viral Video

4. Bacteria Simple one-celled organisms Treated with antibiotics
Examples include: Staphylococcus aureus (Staph infection), Escherichia coli (E.coli), etc.

5. Fungus More complex organisms than bacteria Cannot make their own food
Thrive in warm moist areas
Examples: Athletes Foot, Ringworm, etc.

6. Protozoa One-celled organisms More complex than bacteria
Examples: Plasmodium (causes malaria), Amoeba (most common protozoa)

7. How do you get sick? The spread of Pathogens
Direct Contact
Indirect Contact

8. Direct Contact When a person touches an infected:
Animal
Contact must be via infected blood or bodily fluids

9. Indirect Contact
NO direct contact
Spread through sneezing or coughs.
Droplets from sneezes or coughs can travel 3 to 6 feet
Contact with these droplets spreads the disease
A vector can also transmit the disease
A vector is an organism, such as an insect, that carries the disease from one place to another.
Example: Mosquito carrying West Nile Virus or Deer Tick carrying Lyme Disease

10. Stopping the Spread How can we stop the spread of disease?
Brainstorm activity:
How can we stop the spread of disease?