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Select the correct statement about disea...

Select the correct statement about diseases and immunisation

A

If due to some reason B and T lymphocytes are damaged, then the body will not produce antibodies against a pathogen.

B

Injection of dead or inactivated pathogens causes passive immunity.

C

Certain protozoans have been used in mass production of hepatitis B vaccine.

D

Injection of snake antivenom against snake bite is an example of active immunisation.

Text Solution

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The correct Answer is:
A
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