What are 3 diseases caused by micro-organisims?

Here are three diseases caused by microorganisms:

1. Tuberculosis (TB)

Tuberculosis is caused by the bacterium *Mycobacterium tuberculosis* and primarily infects the lungs, although it can also affect other organs. It is spread through the air when an infected person coughs or sneezes, releasing tiny droplets containing the bacteria. TB can cause symptoms such as coughing, fever, night sweats, weight loss, and fatigue. If left untreated, it can be fatal.

2. Malaria

Malaria is caused by a parasite called *Plasmodium*, which is transmitted to humans through the bites of infected female Anopheles mosquitoes. The parasites enter the bloodstream and multiply inside red blood cells, causing symptoms such as fever, chills, sweats, muscle aches, fatigue, and nausea. Malaria can be fatal if not promptly treated.

3. Cholera

Cholera is caused by the bacterium *Vibrio cholerae* and is transmitted through contaminated food or water. It affects the small intestine, causing severe watery diarrhea, vomiting, and dehydration. Cholera can lead to electrolyte imbalances and kidney failure if not adequately treated.