A new global study has estimated that more than 2.5 lakh people die from meningitis every year worldwide, highlighting the persistent burden of the disease despite advances in vaccination. The research, published in The Lancet Neurology, is considered one of the most comprehensive global assessments of meningitis to date.
As reported by RTÉ.ie, the findings come shortly after meningitis returned to the headlines following an outbreak in southeast England, where two people reportedly died after the infection was believed to have spread at a nightclub.
Children Account for a Significant Share of Deaths
According to the study, children accounted for nearly one-third of meningitis-related deaths globally. A large proportion of these fatalities occurred in African countries, where healthcare access and vaccination coverage remain uneven.
The research analysed global health data to understand the scale, risk factors, and geographic distribution of meningitis cases and deaths.
Understanding Meningitis and Its Causes
Meningitis refers to the inflammation of the protective membranes surrounding the brain and spinal cord. The condition typically occurs due to infections caused by viruses, bacteria, fungi, or parasites.
Among these causes, viral meningitis is more common but generally less severe, whereas bacterial meningitis is rarer but far more deadly and requires immediate medical attention.
Recent Outbreak Triggers Vaccination Campaign in the UK
The study’s publication follows a recent bacterial meningitis outbreak in Kent, England, which prompted authorities to launch a rapid vaccination campaign.
Over the past two weeks, more than 10,000 people in the affected region have received vaccinations to prevent further spread of the infection.
Vaccination Has Reduced Cases Since 2000
Over the last two decades, the widespread availability of vaccines has significantly reduced the number of meningitis cases and deaths worldwide.
Since 2000, global health programmes and immunisation campaigns have helped control several major strains of the disease. However, experts warn that the burden of meningitis remains substantial, particularly in low- and middle-income countries.
Global Deaths Estimated at 259,000 in 2023
The new study estimates that approximately 259,000 people died from meningitis worldwide in 2023. Researchers from the Institute for Health Metrics and Evaluation (IHME) in the United States conducted the analysis using global health data.
The “African meningitis belt”, a region stretching from Senegal in West Africa to Ethiopia in East Africa, recorded the highest number of cases. Countries such as Nigeria, Chad, and Niger were among the most severely affected.
Key Risk Factors Identified
The study also identified several major risk factors associated with meningitis deaths, including:
- Low birth weight
- Premature birth
- Air pollution
These factors increase vulnerability to infections and contribute to higher mortality rates, particularly among children.
WHO Targets for 2030 at Risk
Researchers warned that the World Health Organization’s (WHO) global targets for meningitis control may not be achieved by 2030.
The WHO aims to reduce bacterial meningitis cases by 50% and deaths by 70% compared to 2015 levels by the end of this decade. However, the study found that global cases and deaths are declining at only about half the pace needed to meet these goals.
Experts Call for Stronger Global Action
To accelerate progress, researchers emphasised the need for expanded vaccination coverage, improved access to healthcare, and stronger diagnostic and surveillance systems.
“Accelerated efforts—including expanding immunisation, improving access to care, and strengthening diagnostics and surveillance—are essential to achieve these targets,” the study noted.
Underreporting Remains a Major Challenge
The researchers also cautioned that many meningitis-related deaths go unreported, particularly in developing countries where diagnostic capacity and health reporting systems are limited. As a result, the actual global burden of the disease could be higher than current estimates.
The study used data from the Global Burden of Disease (GBD) project, a large international research initiative coordinated by IHME and supported by the Bill & Melinda Gates Foundation. The project involves thousands of scientists worldwide who analyse health data to understand major disease trends and risks.
Strengthening Global Efforts Against Meningitis
Overall, the study underscores the urgent need to strengthen global prevention strategies and healthcare systems to combat meningitis. By expanding vaccination programmes, improving early diagnosis, and enhancing surveillance, countries can significantly reduce meningitis-related deaths and improve global health outcomes.