Vaccinations
Active versus Passive Immunity
Immunological Memory
Development of Immunocompetence
Preventive Healthcare Services
Immunodeficiency Diseases
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Updated: Mar 18, 2026

Inverse Probability of Treatment Weighting Propensity Score using the Military Health System Data Repository and National Death Index
Published on: January 8, 2020
This study found that 84.2% of children received complete Expanded Programme of Immunization (EPI) vaccines, but only 22.4% were immunized against Hepatitis B. Efforts are needed to improve vaccine coverage, especially for Hepatitis B.
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