Final answer:
Cholera is an example of a disease caused by contaminated water, which can lead to severe dehydration. While cold foods and drinks can temporarily help to relieve symptoms like fever in conditions such as pneumonia, they are not a substitute for medical treatment.
Step-by-step explanation:
An example of a disease caused by contaminated water is Cholera, which is a serious bacterial infection typically spread through contaminated water.
Cholera can cause severe diarrhea and dehydration. In comparison, a cold is a viral respiratory infection, colessus does not correlate with any known condition, and colitis is inflammation of the colon which can have various causes including infection, but not specifically linked to water contamination as cholera is.
Clinical conditions such as pneumonia may sometimes be treated with cold foods and drinks to help relieve fever, though this is not the primary treatment. Pneumonia is characterized by inflammation of the alveoli in the lungs, which can fill with fluid or pus. To help alleviate discomfort, cold foods or drinks might be used to reduce body temperature, although medical treatment should be the priority.