A major new study has found that emergency vaccination efforts carried out in response to outbreaks of five deadly diseases have reduced deaths by nearly 60% over the past 23 years. Covering 210 outbreaks across 49 countries between 2000 and 2023, the research highlights the impact of rapid vaccine deployment against Ebola, measles, cholera, yellow fever and meningitis.

The findings suggest that these targeted vaccination programmes didn’t just save lives but also prevented a similar number of infections, effectively curbing the scale of potential epidemics. By halting the spread early, the interventions appear to have played a key role in averting much larger public health emergencies.

In addition to the human impact, the economic benefits have been considerable. The estimated savings from avoided deaths and long-term disability equate to roughly $32 billion. However, researchers believe the true value could be far higher, as this figure doesn’t reflect the cost of managing widespread outbreaks or the economic disruption they would likely cause.

The study was supported by Gavi, the vaccine alliance, which helped coordinate many of the emergency responses. Its CEO, Dr Sania Nishtar, stressed the findings prove how vital swift vaccine roll-outs are in tackling global health threats - and why ongoing investment in vaccine initiatives remains essential.