Paediatrician Dr Bhavya S highlights the importance of IPV (Inactivated Polio Vaccine) and OPV (Oral Polio Vaccine) in the global fight against polio. IPV, given by an injection, contains a killed virus and protects against all three polio strains. OPV, administered as oral drops, contains a weakened virus. Both vaccines are crucial for achieving polio eradication worldwide.