Abstract

Background: Due to COVID-19 pandemic there was implementation of preventive measures like lockdown, mobility restriction and fear had an impact on routine immunization of children. There are significantly increases the susceptibility window for vaccine preventable diseases due to delayed vaccination in under five children. The objective of study is to know the trend of routine immunization of previous five year and to assess the impact of COVID-19 pandemic on routine immunization of children of age group up to 7 years at tertiary care hospital at Pune.
Methods: A hospital-based cross-sectional study was conducted in a tertiary care hospital of Pune city from the month of January 2017 to December 2021. All the data of immunization from age group 0 to 7 years present at tertiary care center Pune, was compared and analysed. Data is expressed as numbers and percentages and means. Chi-square test was used to compare observed results with expected results.
Results: In year 2020, there was a declining trend of all vaccines among children compared to previous 3 years.  In year 2019, 2020, 2021, number of children vaccinated are 6547, 4052, and 5062 respectively. Out of this 1078(16%), 1089(26.9%), 1165(23%) children had delayed vaccination in year 2019, 2020, 2021 respectively. There was highly significant increase in delayed vaccination of children in COVID-19 period.
Conclusion: The routine immunization of children was decreased and delayed due to COVID-19 pandemic. This is an alarming finding to prevent reappearance of new epidemics of vaccine preventable diseases.Actions should be taken to avoid delayed routine immunization in future.