Q2 of 35 Page 181

Name the four categories of materials for preparing vaccines.

The four categories of materials that are used for the preparation of vaccines are given below:
























Material



Vaccine



Killed Germs



TAB vaccine for typhoid



Living Weakened



Vaccine for measles



Living fully poisonous germs



Vaccine for smallpox / Cowpox



Toxoids



Vaccine for diphtheria & Tetanus



More from this chapter

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2

Mention if the following statements are True (T) or False (F):

(i) The immune system deals with the germs after they have entered the body.


(ii) Antibodies eat up the germs.


(iii) Human beings can suffer from all those diseases which attack dogs.


(iv) Anti-venine injection against snake bite is an example of artificially acquired passive immunity.


(v) Mother’s antibodies may reach the foetus through the placenta.


(vi) A person having once suffered from measles usually gets repeated attacks.

 1

Define the term prophylaxis.

 3

Name the diseases prevented by:

(i) Salk’s vaccine …………………………………


(ii) BCG vaccine …………………………………


(iii) DTP vaccine ……………………………………

 1

Correct the following statements if they are false (without changing the first word).

(i) DDT is an antiseptic. ………………………………


(ii) Penicillin is a disinfectant. ……………………………


(iii) Disinfectants are applied on the body. ……………………………………………………………


(iv) Deodorants are both antiseptic as well as disinfectants. ……………………………………………


(v) Alexander Fleming discovered the first sulphonamide. ……………………………………


(vi) Antibiotics cannot be made synthetically. ……………………………………


(vii) Sulphonamides are now rarely used. ………………………………………………