Bangladesh’s measles outbreak has killed more than 1,000 children this year, making it the world’s largest ongoing measles crisis, according to Al Jazeera.
Health officials confirmed 1,002 deaths and 187,484 infections as of September 9. The outbreak began in late February and was formally declared in mid-March, but cases have kept climbing through the year despite an emergency vaccination push.
Children under five make up more than 80 percent of the cases, and hospitals in Dhaka and Chittagong, the hardest-hit divisions, have struggled to keep pace with admissions. The government has identified 30 outbreak hotspots across 20 districts.
Earlier tallies from health authorities in June had put suspected cases at just over 160,000, with roughly 140,000 hospitalizations and about 135,000 recoveries recorded by that point. Of the deaths logged at the time, only a fraction had been laboratory-confirmed as measles, with the rest classified as suspected cases pending testing, a distinction that reflects Bangladesh’s stretched diagnostic capacity as much as the true scale of the outbreak.
Dhaka division alone accounted for tens of thousands of suspected cases, followed by Chittagong, according to government surveillance data. Rural districts with weaker health infrastructure have also reported clusters, complicating efforts to contain the disease once it reached areas with limited access to hospitals or cold-chain storage for vaccines.
Why the vaccination drive fell short
The roots of the crisis trace back to political upheaval following the ouster of former prime minister Sheikh Hasina in 2024, which disrupted the country’s routine immunization system for more than a year.
Health Minister Sardar Husain said changes to procurement policy during that period “created a vaccine shortage” that left millions of children without their scheduled measles-rubella doses. Bangladesh had previously reached vaccination coverage above 92 percent before the decline.
An emergency campaign launched in April eventually reached about 18 million children, but officials say it was not enough to close the gap. Directorate General of Health Services spokesman Zahid Raihan said teams “couldn’t achieve herd immunity” because they were still tracking down roughly 4 million children who had been missed entirely by earlier rounds.
“Bangladesh has never witnessed so many children dying from measles,” said Professor Mahmudur Rahman, a former director of the country’s epidemiology institute, according to ABC News. “This is a truly terrible situation.”
The US Centers for Disease Control and Prevention has classified the outbreak as the largest measles epidemic anywhere in the world right now. Compounding the strain, Bangladeshi hospitals are simultaneously handling more than 45,000 dengue admissions, stretching an already overloaded health system.
The pandemic years also played a role. Resources and staff that would normally have gone toward routine measles-rubella immunization were redirected to COVID-19 vaccination campaigns for an extended period, according to health officials, leaving a cohort of children without protection just as political instability took hold. That combination, rather than any single failure, is what allowed the virus to spread so widely once it resurfaced.
Measles is among the most contagious viruses known, capable of infecting nine or more unvaccinated people for every one carrier in a susceptible population. Public health experts generally say coverage of at least 95 percent with two vaccine doses is needed to sustain herd immunity, a threshold Bangladesh had approached before 2024 but has since fallen well short of in large parts of the country.
A warning for the region
The outbreak is a reminder of how quickly routine immunization can unravel when political instability disrupts health administration, a risk Pakistan knows well from its own long struggle to fully eradicate polio despite decades of vaccination campaigns.
Pakistan’s measles coverage has also fluctuated in recent years, with health authorities periodically reporting seasonal spikes in cases, particularly among unvaccinated children in underserved districts of Sindh and Balochistan. Public health experts have long warned that gaps in one South Asian country’s immunization coverage can put its neighbors at risk, given cross-border travel and dense population movement across the region.
Both countries also share the experience of fighting vaccine hesitancy and misinformation alongside logistical hurdles such as reaching remote or flood-affected communities. Pakistan’s own polio program, still active decades after most of the world eliminated the disease, is frequently cited by global health officials as a case study in how fragile routine immunization can become once trust in vaccination campaigns erodes or access is disrupted by conflict, natural disasters, or shifting government priorities.
The World Health Organization has previously flagged measles resurgence as a global concern, noting that outbreaks in one country often signal broader gaps in regional immunization systems rather than an isolated failure. Health researchers say Bangladesh’s experience underscores why sustained, well-funded routine immunization matters even when measles has not been in the headlines for years, since immunity gaps can widen quietly until an outbreak exposes them all at once.
Bangladesh’s government has cancelled medical staff leave to support ongoing vaccination efforts and says it aims to bring the outbreak under control before the end of the year. Officials have also pledged additional emergency funding for cold-chain logistics to ensure vaccines reach rural clinics without spoiling in transit, a persistent challenge during the earlier campaigns.
But with confirmed cases still being added to the tally each week, and with dengue simultaneously filling hospital wards, health workers say the coming months will determine whether the emergency campaigns can finally catch up with the spread, or whether the death toll will keep climbing before the outbreak burns itself out.
