Diseases & Transmission

Types

• Communicable Disease: A disease that can be transmitted from one person to another.
• Non-communicable Disease: A disease that cannot be transmitted from one person to another.
• Endemic Disease: A disease that is constantly present in a particular population or geographical area.
• Epidemic Disease: A widespread occurrence of an infectious disease in a community at a particular time.
• Pandemic Disease: An epidemic of an infectious disease that has spread across a large region, for instance multiple continents or worldwide.
• Sporadic Disease: A disease that occurs infrequently and irregularly.

Modes of Transmission

• Airborne: The disease is transmitted through the air.
• Waterborne: The disease is transmitted through contaminated water.
• Vectors: The disease is transmitted by an animal, such as a mosquito or a fly.
  • Housefly: Can transmit diseases such as cholera and typhoid fever.
  • Mosquito: Can transmit diseases such as malaria and dengue fever.
  • Cockroach: Can transmit diseases such as salmonellosis and gastroenteritis.