Question

According to the 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:

The inclusion of Type 1, 2, and 3 in OPV helps ensure broad immunity against polio.

Answer 1

The Correct Option is A

Step 1: Poliovirus Types in OPV
The oral polio vaccine (OPV) includes poliovirus strains of Type 1, Type 2, and Type 3, offering protection against these three virus types. Type 4 poliovirus is not present in the OPV.