Which among the following diseases is not infectious?CancerTyphoidMalariaCholera

Understanding Infectious vs. Non-Infectious Diseases

1. Identify the Diseases: The given options are Cancer, Typhoid, Malaria, and Cholera.
2. Define Infectious Diseases: Infectious diseases are illnesses caused by pathogens such as bacteria, viruses, fungi, or parasites that can be transmitted from one individual to another.
3. Analyze Each Disease:
   • Cancer: A group of diseases characterized by uncontrolled cell growth. It is not caused by pathogens and is not contagious.
   • Typhoid: Caused by the bacterium Salmonella typhi, it is transmitted through contaminated food and water.
   • Malaria: Caused by Plasmodium parasites, transmitted through the bites of infected mosquitoes.
   • Cholera: Caused by the bacterium Vibrio cholerae, typically spread through contaminated water.

Conclusions

Based on the definitions and analyses:

• Cancer is the only non-infectious disease among the options provided.

Final Answer

Cancer is not an infectious disease.