Background: Achieving and sustaining high levels of equitable immunization coverage
during and after outbreaks remains a major public health challenge for many health systems …

Large-scale epidemics in resource-constrained settings disrupt delivery of core health
services, such as routine immunization. Rebuilding and strengthening routine immunization …

Background Integrated vaccine delivery–the linkage of routine vaccination with provision of
other essential health services–is a hallmark of robust primary care systems that has been …

Vaccine-preventable diseases (VPD) are responsible for a significant portion of mortality
across the life course in both low-income countries and in medium-and high-income …

Complex humanitarian emergencies affect 40–60 million people annually and are a growing
public health concern worldwide. Despite efforts to provide medical and public health …

The global vaccination effort was generally considered inequitable and ineffective.
Vaccination rates mostly followed an income-based pattern both in terms of onset of large …

Introduction The essential components of a vaccine delivery system are well-documented,
but robust evidence on how and why the related processes and implementation strategies …

Introduction The COVID-19 pandemic has amplified pre-existing challenges to health
promotion and care across the world, and particularly in low-and middle-income countries …

All vaccination campaign studies described short-term and adaptive responses to crisis,
including mobilisation of significant additional resources domestically, from international …

Despite the availability of effective vaccines for preventing common childhood infectious
diseases, there is still significant disparities in access and utilization across many low-and …