Restoring Immunization Services Provided by the Vaccines for Children Program in Puerto Rico After Hurricanes Irma and Maria, 2017-2019.

Context: In September 2017, Hurricanes Irma and Maria impacted Puerto Rico, causing significant disruption of immunization services and vaccine losses due to widespread infrastructure and electrical grid damage and resulting cold chain failures.

Objective: To describe posthurricane efforts undertaken to restore and strengthen immunization services provided by Puerto Rico's federally funded Vaccines for Children (VFC) Program, a network of clinics that provide vaccines to eligible children.

Design: Historical records were reviewed to characterize Puerto Rico's prehurricane immunization system.