Table of Contents
Pathogen
A microbe which causes disease is called a pathogen. Some examples of pathogens are as follows:
Pathogens and Diseases
| Pathogen | Disease | Mode of Transmission |
|---|---|---|
| Plasmodium | Malaria | Spreads through bite of female Anopheles mosquito. |
| Dengue virus | Dengue | Spreads through bite of Aedes mosquito. |
| Common cold virus | Common cold | Through air; when someone coughs or sneezes. |
| Many bacteria | Cholera, diarrhoea | Through contaminated food and water. |
| Hepatitis B virus | Hepatitis B | Through exchange body fluids. |
| HIV | AIDS | Through exchange of body fluids. |
| Bacillus anthracis | Anthrax (in animals) | Through contact. |
How to prevent Malaria and Dengue:
- Malaria and dengue spread through mosquitoes. So, breeding of mosquito should be prevented.
- Don’t allow water to stagnate in surroundings because mosquitoes lay eggs in stagnant water.
- Frequently clean the water in cooler.
- Keep the overhead tank covered.
- Keep the drains properly covered.
- Fill any ditch with sand or soil.
- Use mosquito repellant creams and mosquito nets to prevent mosquito bite.
| Diseases caused by microbes in plants | ||
|---|---|---|
| Microbes | Disease | Mode of transmission |
| Bacteria | Citrus canker | Air |
| Fungi | Rust of wheat | Air, seeds |
| Virus | Yellow vein mosaic of Okra | Insects |
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Web Story of Harmful Microbes