Question

According to National Immunisation Schedule, OPV (oral polio vaccine) contains how many types of Poliovirus?
 A. Type 1 
B. Type 2 
C. Type 3 
D. Type 4

• A. A, B and C only
• B. A and C only
• C. A and B only
• D. B, C and D only

Hint:

OPV includes Type 1, Type 2, and Type 3 to provide immunity against the three known strains of poliovirus.

Answer 1

The Correct Option is A

Step 1: Poliovirus Types in OPV.
The oral polio vaccine (OPV) includes poliovirus Type 1, Type 2, and Type 3 to protect against these three virus types. OPV does not contain Type 4 poliovirus.