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COVID-19 and missed routine immunizations: designing for effective catch-up in Canada
Covid-19 and its impact on immunization programs: reflections from Brazil
Cost of vaccine delivery strategies in low- and middle-income countries during the COVID-19 pandemic
Sustained Vaccination Coverage during the Coronavirus Disease 2019 Epidemic in the Republic of Korea
Negative impact of the COVID-19 pandemic on routine childhood immunization: experience from Pakistan
Vital Surveillances: Effectiveness of Catch-Up Vaccinations after COVID-19 Containment — China, 2020
Missed childhood immunizations during the COVID-19 pandemic in Brazil: Analyses of routine statistics and of a national household survey
Introduction: There is widespread concern that disruption to health services during the COVID-19 pandemic has led to declines in immunization coverage among young children, but there is limited information on the magnitude of such impact. High immunization coverage is essential for reducing the risk of vaccine preventable diseases. Methods: We used data from two nationwide sources covering the whole of Brazil. Data from the Information System of the National Immunization Program (SIPNI) on the monthly number of vaccine doses administered to young children were analyzed. The second source was a survey in 133 large cities in the 27 states in the country, carried out from August 24-27. Respondents answered a question on whether children under the age of three years had missed any scheduled vaccinations during the pandemic, and available vaccination cards were photographed for later examination. Results: SIPNI data showed that, relative to January and February 2020, there was a decline of about 20% in vacci
