Which of the following is not a water borne disease?

Question

Accepted Answer

Tuberculosis (TB) is not a water-borne disease, which is why Option 4 is the correct answer. Tuberculosis is primarily a respiratory disease caused by the bacterium Mycobacterium tuberculosis. It spreads through the air when an infected person coughs, sneezes, or talks, releasing tiny droplets containing the bacteria. People nearby can inhale these droplets and become infected. TB primarily affects the lungs but can also affect other parts of the body.

Now, let's explain why the other options are incorrect:

1. **Cholera**: Cholera is a water-borne disease caused by the bacterium Vibrio cholerae. It spreads through the consumption of contaminated water or food. Cholera is characterized by severe diarrhea and dehydration, and it is commonly associated with poor sanitation and contaminated water sources.

2. **Typhoid**: Typhoid fever is another water-borne disease caused by the bacterium Salmonella typhi. It spreads through the ingestion of contaminated food or water. Typhoid is prevalent in areas with inadequate sanitation and is characterized by symptoms such as high fever, weakness, stomach pain, and diarrhea.

3. **Hepatitis**: Specifically, Hepatitis A and E are water-borne diseases. They are caused by viruses that spread through the consumption of contaminated water or food. These types of hepatitis are associated with poor sanitation and can lead to liver inflammation.

In summary, Cholera, Typhoid, and certain types of Hepatitis are all water-borne diseases, as they spread through contaminated water or food. Tuberculosis, on the other hand, is not transmitted through water but through airborne droplets, making Option 4 the correct answer.