What is the difference between imported inactivated polio vaccine and pentavaccine?

Five kinds of vaccines, such as DTP vaccine, inactivated polio vaccine and Haemophilus influenzae type B vaccine, have better preventive effect of pertussis than domestic free vaccines. Vaccination with five vaccines can simplify vaccination procedures, reduce vaccination times and alleviate the pain of children's multiple injections. Of course, its biggest drawback is its high price. Vaccination is strongly recommended if the price is acceptable.

Imported inactivated polio vaccine contains only one vaccine ingredient.