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Option 1 : Why do we use masks to prevent the spread of covid but not to prevent the spread of diabetes?
Communicable diseases: These diseases are caused by certain infectious agents which may be bacteria or viruses. These are capable of being transmitted from person to person or from the environment to person.
- Examples: Typhoid, Cholera, Tuberculosis, Covid 19.
- These diseases are spread by
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When we touch a person or come in direct contact with the skin.
- A spray of droplets of saliva or secretion of a diseased person.
- Communicable diseases are also transmitted indirectly in the following ways that are popularly known as ‘5Fs’— flies, fingers, fomites (material capable of carrying infections, like towels, handkerchiefs, etc.), food, and fluid.
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The non–communicable diseases may occur due to genetic and lifestyle factors. When these are caused by an unhealthy lifestyle, these diseases are also called lifestyle diseases.
- Examples: diabetes, hypertension, heart diseases, stroke, and cancer.
- These don't spread to one another through physical contact or any other means.
Since covid is a communicable disease use masks to prevent the spread of covid but not to prevent the spread of diabetes since it is a noncommunicable one.
Hence option 1 is the correct one. Rest options are not aimed to differentiate between communicable and noncommunicable diseases.
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