Read the given passage and answer the following questions
These days, there is no smallpox anywhere in the world. But as recently as a hundred years ago, smallpox epidemics
were not at all uncommon. In such an epidemic, people used to be very afraid of coming near someone suffering from
the disease since they were afraid of catching the disease. However, there was one group of people who did not have
this fear. These people would provide nursing care for the victims of smallpox.
(a) On what basis, people were selected to help as caregivers to the victims of smallpox?
(b) Who discovered ‘vaccine’ for the first time? Name any one disease against which a vaccine has been developed.
(c) Why is vaccination considered as prevention of diseases?
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Answer:
Ans A 1) people who don't have fear of smallpox.
2) The people who can provide nursing and care for the victims of small pox.
Ans B) Edward Jenner discovered the first vaccine for cow pox which can also work for smallpox.
Ans C) Vaccines train your immune system to create antibodies, just as it does when it's exposed to a disease. However, because vaccines contain only killed or weakened forms of germs like viruses or bacteria, they do not cause the disease or put you at risk of its complications, but rather prevents you from the seriousness of that disease.
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