Answers

2015-03-09T22:16:54+05:30
  The basis of Principle of Immunization 
By providing vaccination, we can .fool  the immune system into developing a memory for a particular infection by putting something, that mimics the microbe we want to vaccinate against, into the body. This does not actually cause the disease but this would prevent any subsequent exposure to the infecting microbe from turning into actual disease.
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2015-03-09T22:39:56+05:30
Actually immunisation is injecting attenuated infecatious causing agents which are capae of exciting immune system bt nt able to cause symptoms of particular disease....which actually makes immune system to hv memory of particular agent
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Actually immunisation is injecting attenuated infecatious causing agents which are capae of exciting immune system bt nt able to cause symptoms of particular disease....which actually makes immune system to hv memory of particular agent