Question

Select the correct statement with respect to diseases and immunisation.

• A. Certain protozoans have been used to mass produce hepatitis B vaccine
• B. Injection of snake antivenom against snake bite is an example of active immunisation
• C. If due to some reason B and T-lymphocytes are damaged, the body will not produce antibodies against a pathogen
• D. Injection of dead/inactivated pathogens causes passive immunity

Answer 1

The correct option is C If due to some reason B and T-lymphocytes are damaged, the body will not produce antibodies against a pathogen

Hepatitis B vaccine is a sterile suspension of non-infectious subunit viral vaccine derived from HBsAg produced in yeast cells. Injection of snake antivenom against snake bite is an example of artificially acquired passive immunity.
T cells and B cells are the major cellular components of the adaptive immune response. T cells are involved in cell-mediated immunity whereas the B cells are responsible for humoral immunity i.e., relating to antibodies.
Injection of dead / inactivated pathogens causes active immunity.
So, the correct answer is option C.