If we suffer from a disease, we have no chance of suffering from it again. This is the basis of immunisation. But we have a common cold from time to time and this contradicting this statement. Why?

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Solution

Dear student, The virus for common cold is known as rhino virus and for this viral Infection there is no vaccine. There are only medicines which reduces the symptoms of such.Hence proper immunisation does not work for common cold. Regards

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