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What are the different mean by which infectious diseases are spread?

What are the different mean by which infectious diseases are spread?


1 Answers

Harshit Singh
askIITians Faculty 5964 Points
one year ago
Dear Student

The different means by which infectious diseases spread are:
(a) Through air: They are also called air-borne diseases. The air carries bacteria, virus and the diseases that can be caused are: common cold, influenza, tuberculosis etc.
(b) Through food and water: When one eats drinks contaminated food/water, that contains bacteria, vrirns, worm etc. it can cause diseases like cholera 'phoid, hepatitis,
(c) Trough contact: Many diseases spread by contact of infected person with the healthy person,
Example, fungal infections, skin diseases, scabies etc.
(d) By sexual contact: Many diseases can be transmitted, example, syphilis, AIDS.
(e) By body fluids: Fluids like blood, semen, mother's milk, when infected, can also cause diseases.
Example, AIDS.
(f) Vectors: The organism that spreads a disease by carrying pathogens from one place to another is called vector. Example, mosquitoes are vectors that carry pathogens like protozoa.


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