1. Communicable Disease -get out paper!!!

2. What are Communicable Diseases?
A disease that is spread from one living thing to another or through the environment.
An organism that cause diseases is a pathogen.
An infection is a condition that occurs when pathogens enter the body, multiply, and damage body cells.

3. Types VIRUS Pieces of genetic material surrounded by a protein coat
By themselves, they are inactive- they need living cells to produce
The virus invades a host cell and then takes control to manufacture more viruses.
Eventually the viruses are killed by the immunity system- though sometimes it can be a life long infection.

4. Bacteria Single-celled microorganisms that live anywhere on earth
Most are harmless, and many are essential for life- such as in your digestive system
When bacteria enter the body, they are usually killed by the immune system
Most bacterial disease can be treated with antibiotics

5. Fungi Protozoans Rickettsias Plantlike organism- like mold or yeast
Some cause disease of the skin, mucus membranes and even the lungs
Protozoans
Single-celled organisms that are larger and more complex than bacteria
Most are harmless though some can cause people with weaken immune systems.
Rickettsias
Enter body through an insect- fleas or lice.
Can cause Rocky Mountain Fever

6. How they are transmitted
Direct Contact
Passage through contact with an infected person or animal or with something in the environment.
This includes kissing, touching, biting, sexual contact, sneezing or coughing.
Indirect Contact
When someone comes into contact with a contaminated object
Can be through air, water, food, insect

7. Prevention Washing hands adequately and properly
Handle and prepare food properly
Cook quickly and at the right temperature
Eat healthy
Healthy sexual choices
Manage stress

8. Physical and Chemical Barriers
Skin
Very few pathogens can enter through the dead skin layers
Tears and Saliva
Contain enzymes that destroy or disable pathogens
Cilia
Hairlike projections that line part of the respiratory system to sweep pathogens to the throat to be swallowed or coughed out
Gastric Juices
Destroys many pathogens that enter the body

9. Your Task
Read Pages
You will be creating an outline of these 2 pages, making sure to draw and understand the chart on pg.630
It is crucial you understand how this works
Tomorrow is a brochure activity