Question

1. Do all diseases spread to people
coming in contact with a sick person?

2. What are the diseases that are not
spreading?

3. How would a person develop those
diseases that don't spread by contact
with a sick person?

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Answer 1

Answer:

1)All contagious diseases are infectious, but not all infectious diseases are contagious. Contagious diseases are infectious diseases that are easily spread through contact with other people.

2)The four main types of noncommunicable diseases include cardiovascular disease, cancer, chronic respiratory disease, and diabetes.

...

Chronic respiratory disease

chronic obstructive pulmonary disease (COPD)

asthma.

occupational lung diseases, such as black lung.

pulmonary hypertension.

cystic fibrosis.

3)Deficiency diseases like scurvy, Kwashiorkor, anaemia etc are caused by inadequate diet. Inherited diseases like haemophilia are caused by passing of defective genes from parents to offspring. Degenerative diseases like arthritis are caused by wearing away of organs and tissues usually with age.

Explanation:

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Answer 2

Answer:

1. No all diseases do not spread to people coming in contact with a sick person
2. these diseases do not spread as these are non-communicable diseases.
3. These diseases are developed by sometimes genetic effect or defficiency of some vitamins and minerals.
4. example are high blood pressure etc.