Question

Match the following vaccines under Column I with their respective content under Column II.

Column I Vaccine		Column II  Content
A	OPV	I	Killed bacteria
B	Typhoid (TAB)	II	Live bacteria
C	Tetanus	III	Killed virus
D	BCG	IV	Live virus
		V	Toxoid

Choose the correct answer from the options given below :

• A. (A)-(III), (B)-(V), (C)-(I), (D)-(II)
• B. (A)-(I). (B)-(II), (C)-(V), (D)-(III)
• C. (A)-(IV). (B)-(I). (C)-(V), (D)-(II)
• D. (A)-(II). (B)-(III), (C)-(IV), (D)-(I)

Answer 1

The Correct Option is C

To solve this matching question, we will analyze each vaccine under Column I and match it with the appropriate content in Column II. Here's how:

1. OPV (Oral Polio Vaccine): OPV contains weakened or attenuated live viruses. It provides immunity by allowing the virus to replicate in the intestines, thus stimulating the immune system without causing the disease. Therefore, it should match with IV - Live virus.
2. Typhoid (TAB) Vaccine: The TAB vaccine contains killed bacteria. It is a mixture of heat-killed bacteria of Salmonella typhi responsible for causing typhoid fever. Thus, it should match with I - Killed bacteria.
3. Tetanus Vaccine: This vaccine is not a live or killed pathogen but a toxoid. Tetanus vaccine is composed of inactivated tetanus toxin. Therefore, it should match with V - Toxoid.
4. BCG Vaccine: The BCG vaccine contains live, attenuated strains of Mycobacterium bovis used to protect against tuberculosis. Hence, it matches with II - Live bacteria.

Based on the analysis, the correct matches are:

• (A) - (IV): OPV - Live virus
• (B) - (I): Typhoid (TAB) - Killed bacteria
• (C) - (V): Tetanus - Toxoid
• (D) - (II): BCG - Live bacteria

Thus, the correct option is: (A)-(IV), (B)-(I), (C)-(V), (D)-(II).