Assertion : A person who has received a cut and is bleeding needs to be given anti tetanus treatment.
Reason : Anti-tetanus injection provides immunity by producing antibodies for tetanus.
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
If the Assertion is correct but Reason is incorrect.
If both the Assertion and Reason are incorrect.
Who among the following established the scientific basis of vaccination?
Damage to thymus in a child may lead to
It constitutes about $50$ percent of the lymphoid tissue in human body.