What is the Immune System

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Social context and historical events

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PERIODONTAL DISEASE

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An innate response is quick and general. An acquired response is slower and specific.

Acquired makes specific antibodies that attack to antigens and destroy them.

What is the Immune System?

4 Ways of Transmission

4. Animal Bites

3. Water and Food

2. Indirect Contact

1. Direct Contact

Animal Bite

Being bitten by an animal carrying the rabies virus

Water and Food

Eating foods, such as egg and meat that are infected by Salmonella bacteria

Indirect Contact

Being near someone that is sick and that could be contagious

Direct Contact

Shaking hands, sharing drinks, sharing bodily fluids with an infected person

Two Lines of Immune Defense:

Second line of defence has two parts Innate and Acquired.

First line is the skin and the linings of the bodies internal systems.

Infectious diseases are caused by germs called pathogens.

The Immune System attacks and destroys invaders like pathogens and antigens that enter the body.