Routine immunization 2020 in Chile during the SARS-CoV-2 pandemic

Abstract

In March 2020, the World Health Organization (WHO) recommended that vaccination not be interrupted as long as countries could safely maintain this service in the context of the SARS-CoV-2 pandemic. WHO also warned about the risk of interruption of programmatic vaccination that generates an increase in the number of people susceptible to infections that are sought to be prevented with the use of vaccines and, therefore, an increase in the probability of disease outbreak. Along with increased morbidity and mortality in risk groups, vaccine-preventable disease outbreaks would put additional demand on the health system already burdened by COVID-19. In August 2020, WHO reported the interruption of essential health services in different countries as a result of the SARS-CoV-2 pandemic, which mainly affected routine and extramural vaccination. In Chile, programmatic vaccination coverage decreased during 2020 compared to the average coverage for the 2015-2019 period. The smallest decline was 0.39% for the hexavalent vaccine at 2 months of age and the largest decrease was 12.02% at 18 months for the same vaccine. The exception to the fall in coverage in 2020 was adult pneumococcal vaccination, which showed an increase of 0.8% compared to 2015-2019.