Global Health priorities: repositioning routine immunization for infants.

The first year of the Coronavirus disease (COVID-19) pandemic registered the highest number of children under the age of one year who did not receive basic vaccines since 2009. The pronounced rise in vaccine-preventable diseases in 2020 and 2021 was largely attributable to the disruption of the vaccine schedule for children around the world. Routine vaccinations were missed in consideration of movement restrictions to prevent the spread of COVID-19. On the other hand, health resources were re-allocated to COVID-19, resulting in strained health care systems and the marginalization of essential health services like routine vaccination campaigns. The COVID-19 pandemic has clearly illustrated the potential of vaccines in saving lives and preventing disabilities. The unequal roll-out of vaccination programmes has simultaneously deepened the existing gaps between high and low-income countries. Disruption in other key life-saving immunization programmes is driving these inequalities even further. Prompt and sustainable investments in routine immunization programmes, including catch-up vaccination strategies, are essential to avert the impact of years of neglect of this important public health issue. In particular, the recent declining trends in vaccination coverage are putting decades of progress at risk.