Global immunization coverage has been increasing yearly. Currently, over 2.5 million of deaths due to vaccine preventable diseases such diphtheria, tetanus, whooping chough (pertussis) and measles are averted by immunization. WHO stated that immunization is the most cost effective health intervention to reduce infant and child deaths. It costs US $ 5 to US $10 per child per year. Vaccine Preventable Diseases (VPDs) are a global burden which needs to be reduced. It was estimated that 11 million Disability Adjusted Life Years (DALYs) averted and 0.3 million deaths can be averted...