Vaccine and Immunization

I know what you're thinking. What's the difference?
 
The IPV is a set of three intravenous injections containing inactivated poliovirus. This vaccine is more expensive and requires skilled staff to administer, but it does not have the danger of vaccine activated paralytic poliomyelitis (VAPP).

The OPV is a set of three oral doses containing attenuated poliovirus. This vaccine is much cheaper to administer, but it carries the risk of mutating into a virulent form (VAPP).

The chart below delineates the differences between the two vaccines.

                                                                  Inactivated Polio Vaccine (IPV)   
Duration of Immunity                                                      Medium
Cost                                                                                   High
Route of Administration                                                 Injection
Skilled Staff Needed                                                           Yes    
Stimulates IgG antibody                                                  In Blood
Inadequate response in                                                      No
   some tropical countries
Involuntary transmission to                                                 No
   non-vaccinated persons
Possible transformation to                                                  No
   virulent poliomyelitis
Contraindicated in pregnancy                                              No
   or immunodeficient states

Oral Polio Vaccine (OPV)
   Long
   Low
   Oral
   No
   In gut
   Yes
  
   Yes

   Yes, but rare

   Yes