The term ?active immunity' means [CBSE PMT 1999; BHU 1999] – McqOptions

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1.	The term ?active immunity' means [CBSE PMT 1999; BHU 1999]
A.	Resistance developed after disease
B.	Resistance developed before disease
C.	Resistance rate of heart beat
D.	Increasing quantity of blood
Answer» B. Resistance developed before disease

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