The World Health Organization summarized the global immunization coverage in 2018. The coverage towards 12 diseases were analyzed, some of which included Hepatitis B, Yellow fever, and Rubella.

The total cost for vaccinations includes more than just the vaccine itself. In fact, the cost of the vaccine is only a small portion of the total cost. There are vaccine product-related expenses and administration-related expenses.

Despite the significant advances in immunization, there are still 1.5 million children who die every year from vaccine-preventable diseases. As a result, the WHO derived 5 crucial facts about vaccination.

While all states have school immunization laws that grant exemptions to children for medical reasons, not all states grant exemptions for religious or philosophical reasons. The National Conference of State Legislatures (NCSL) examines which states, as of 2019, have religious and philosophical exemptions.