Diarrhea

1. Contagion

1.1. food

1.2. water

1.3. Washing hands

1.4. food Contaminant

2. Symptoms of disease

2.1. vomit

2.2. Nausea

2.3. diarrhea

2.4. stomachache

2.5. Fatigue

3. Infection

3.1. bacteria

3.2. parasites

3.3. virus

4. Treatment

4.1. 1.see doctor

4.2. 2.physical examination

4.3. 3.laboratory

4.4. 4.diagnose