CBSE Class 12-science Answered
A boy of ten years had
chicken pox. He is not expected to have the same disease for the rest of his
life. Mention how it is possible.
Asked by Topperlearning User | 11 Jun, 2014, 01:04: PM
Expert Answer
The boy produces antibodies when he encounters for the first time that result in memory of the first encounter to protect the body in future.
Answered by | 11 Jun, 2014, 03:04: PM
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