Question

Justify the statement. (a) Availability of proper and sufficient food would protect from infectious diseases. (b) The general ways of preventing infection mostly relate to preventing exposure. List three points of prevention of exposure. (c) It is difficult to prepare antiviral medicines than antibiotics

Answer 1

Answer:

(a) Availability of proper and sufficient food is one of the measure to prevent the occurrence of the infectious diseases. As the infectious diseases also spread through the food we eat; thus, if we obtain healthy and nutritious food free of germs causing diseases, it would definitely prevent us from catching the infection.

(b) (i) For air borne microbes, we can prevent exposure by providing living condition that are not overcrowded.

(ii) For water borne microbes, we can prevent exposure by providing safe drinking water.

(iii) For vector borne diseases, we can prevent exposure by providing clean environment.

(c) It is difficult to make antiviral medicines than making antibiotics because viruses have few biochemical mechanisms of their own. They enter the host cells and use their machinery for their life processes. So, antiviral medicines will work against the host body.

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Answer 2

Answer:

a) Having sufficient food and water gives strength to our immune system to fight diseases with nutrition from food. Water ensures we stay hydrated. Infectious diseases have disease-causing virus or bacteria which enter in the body and attack the immune system. If we have a good diet we can fight the virus thus preventing infectious diseases.

b) The virus and bacteria of the infectious diseases enter the atmosphere when the infected person comes in contact with a particular thing (eg if an infected person sneezes then the virus enters the environment ) so we should stay away from infected people to prevent exposure to infectious diseases.

c) It is difficult to make antiviral medicines than making antibiotics because viruses have few biochemical mechanisms of their own. They enter the host cells and use their machinery for their life processes. So, antiviral medicines will work against the host body.