1. What are germs?
2. Getting germs
3. Germ environment
4. Germ travel
5. Symptoms
6. Water's role
7. Water suppliers
8. Rules
9. Conclusion

Diseases & pathogens

Note on E. coli

What kind of environment do 
pathogens like?

Germs thrive where it is:


Where body temperature is ideal



Where there is moisture; in dry places they lose water quickly


Where it is dark; most germs much prefer darkness over light

Rich in Nutrients

Where there is food to grow and reproduce

In other words, inside you!

Now, you might think it's a stroke of bad luck that your digestive tract is an ideal place for pathogens. In fact, the alimentary canal needs to support micoorganisms, because we depend on some of them in our daily digestive processes. They help break food into its components to supply energy or build our bodies. It's an arrangement that benefits both the microbes and us. We provide a home to the "good" bacteria, and they return the favor by helping us digest our food. Problems arise when pathogenic organisms find their way to the same hospitable enrivonment.

See the kinds of
germs we're talking


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