What is a communicable disease?
BiologyClass 10CBSEAnswered 28 May 2026
Answer
A communicable disease (infectious/contagious) can be transmitted from one person to another.
Methods of transmission:
- Direct contact touching, kissing (e.g., cold sores)
- Droplets coughing, sneezing (influenza, TB, COVID-19)
- Contaminated food/water cholera, typhoid
- Vector-borne mosquitoes (malaria, dengue)
- Blood/body fluids HIV, hepatitis B
Prevention: Vaccination, hygiene, sanitation, vector control.
Summary: A communicable disease spreads from person to person through direct contact, air, water, food, or vectors like insects.
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