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Fabrication of Pulsatile Polymeric Microparticles Encapsulating Rabies Antigen

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Routine Vaccination Coverage - Worldwide, 2020.

Pierre Muhoza, M Carolina Danovaro-Holliday, Mamadou S Diallo

MMWR. Morbidity and Mortality Weekly Report

|October 28, 2021

Summary

This summary is machine-generated.

Global vaccination coverage declined in 2020 due to the COVID-19 pandemic, increasing the number of unvaccinated children. Targeted strategies are crucial to recover lost ground and reach zero-dose children for immunization.

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Area of Science:

Global Health
Immunology
Vaccinology

Background:

The Immunization Agenda 2030 (IA2030) aims to reduce vaccine-preventable diseases globally.
This report updates vaccination coverage estimates and trends as of 2020.

Purpose of the Study:

To assess changes in vaccination coverage in 2020 compared to 2019.
To analyze the impact of the COVID-19 pandemic on immunization rates.
To identify trends in unvaccinated and undervaccinated children.

Main Methods:

Analysis of global, regional, and national vaccination coverage estimates for 2019 and 2020.
Focus on key vaccines including diphtheria, tetanus, pertussis (DTP), polio, and measles-containing vaccines (MCV1).
Comparison of vaccine doses administered and numbers of unvaccinated children.

Main Results:

Global DTP3 and Pol3 coverage decreased from 86% (2019) to 83% (2020).
MCV1 coverage dropped from 86% (2019) to 84% (2020).
22.7 million children missed DTP3 in 2020, an increase from 19.0 million in 2019, with zero-dose children comprising 75% of this group.

Conclusions:

COVID-19 pandemic caused significant disruptions to immunization programs in 2020.
A substantial increase in zero-dose children necessitates targeted interventions.
Recovery requires context-specific strategies to catch up on missed vaccinations and strengthen immunization systems.