1. How Bacteria Make Us Sick

2. Exposure
A bacterial cell has to first enter our body, this can happen through:
Ingestion
A break in the skin
(Cut or wound)

3. This makes our insides the ideal breeding ground for bacteria
Inside Our Body
Warm (37 C)
Moist
Lots of food! (sugars)
This makes our insides the ideal breeding ground for bacteria

4. Once inside
The bacteria begin to reproduce…Very Quickly!

5. How Bacteria Cause Illness
1. They can produce Enzymes
Ex: Helicobacter pylori produces an enzyme that neutralizes stomach acids…unfortunately it also destroys the lining of the intestinal wall

6. Flesh Eating Disease
 The medical name for this disease is necrotizing fasciitis (NF) and it is caused by a bacterium called Streptococcus pyogenes,

7. 2. Some produce toxins (poisons) that kill cells.
Clostridium botulinum bacteria produce botulinum toxin,
the most powerful toxin known to humankind.
They cause the disease called botulism
Exotoxins are poisons released by live bacteria.
Endotoxins are poisons released when the bacteria die.

8. 3. Body Become Overwhelmed
Too many bacteria interrupt normal bodily functioning