The World Health Organization (WHO) and UNICEF have released their 2024 global immunisation coverage estimates, giving us a clearer view of how many children are getting the vaccines they need—especially in lower-income countries.

According to the report, while there have been improvements in vaccination rates worldwide after setbacks caused by the COVID-19 pandemic, many poorer countries are still struggling to protect all their children from deadly but preventable diseases.

Millions of children in low- and middle-income countries did not receive basic vaccines like those for measles, polio, and diphtheria in 2023.

Some countries have managed to bounce back to pre-pandemic coverage levels, but many fragile health systems continue to lag behind.

Areas affected by conflict, poverty, and weak health infrastructure are seeing the highest numbers of unvaccinated children.

Health experts warn that gaps in immunisation put entire communities at risk, as diseases can spread quickly when fewer people are protected. This is why global agencies are calling for stronger investment in healthcare systems, outreach efforts to remote areas, and support for local health workers

The report also highlighted the importance of catch-up campaigns, which help vaccinate children who missed their shots during lockdowns and periods of health service disruption.

In simple terms, while progress is being made, millions of children—especially in poorer nations—are still at risk of diseases that vaccines can easily prevent. The message from WHO and UNICEF is clear: the world needs to step up efforts so no child is left behind.