Diseases Caused by Bacteria

Some kinds of bacteria live on you! 
There are millions of bacteria on your skin and inside your mouth, nose, and lungs.
A great many live in your intestines.
Other kinds of bacteria live in the air, in water, or in the top layers of soil.
Bacteria, whether harmful or beneficial, can be spherical, rod-shaped, or spiral.
Each of these harmful bacteria causes a serious illness or disease.

Spherical bacteria
pneumonia



Boils blood poisoning



Sore throat
Scarlet fever



Rod-shaped bacteria
Tuberculosis


Tetanus



Typhoid fever



Spiral bacterium

Cholera

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