Oral polio vaccine contains live viruses.
How is a polio vaccine given?
Q88) Recently there was a debate to replace Oral Polio Vaccine (OPV) by Injectable Polio Vaccine (IPV). Which of the following statements are true with respect to IPV?
1. IPV is made up of attenuated or weakened poliovirus while OPV is made up of inactivated polio virus
2. IPV is more expensive than OPV
3. In areas of low hygiene Vaccine Derived Polio Virus (VDPV) may be contracted due to OPV