Name: Food Preservation
Uploaded: 2019-07-19
Duration: 6 min 33 s
Description: Food preservation is the process of delaying the spoilage of food by using excess salt, sugar, or low pH so that we can store those food items for longer per...

Question

Discuss the different ways in which communicable diseases spread from person to person.

Accepted Answer

The disease that can be spread from a diseased person to a healthy person are called communicable diseases. These can spread through water, air, food, direct contact or by sharing the things.Various ways through which these diseases spread are as follows:

1. Through air: A person who suffers from common cold, flu or cough can spread the disease causing microbes when he coughs or spits. When he coughs or speaks the germs are released into the air and a healthy person breathing in the same air can get infected. The disease that spread through air are cold, chicken pox, tuberculosis, measles and polio.

2. Through food and water: Disease like Cholera, typhoid, or hepatitis can spread by the consumption of contaminated food that contains the harmful microbes.

3. Through direct contact: disease like ringworm, chicken pox, or sexually transmitted diseases can spread through direct contact with the affected person.

4. Through insects: The insects that spread the disease causing microbes are called vectors or carriers of germs. Example: Anopheles mosquito can spread the Malaria causing protozoan, or the Dengue causing virus into human blood during mosquito bite.

5. Through cuts and wounds: The tetanus causing bacteria called Mycobacterium tetani enters the body through cuts and wounds.

Discuss the different ways in which communicable diseases spread from person to person.

Important Questions on Microorganisms

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