Bangladesh's Measles Deaths Pass 1,000 as a Vaccination Gap Catches Up With Children
The world's largest measles outbreak has been traced to immunisation lapses during the 2024-25 political turmoil, and an emergency campaign has still missed about four million children.
More than 1,000 people, almost all of them children, have now died in Bangladesh's measles outbreak, the country's deadliest in decades and the largest measles outbreak anywhere in the world. The toll passed the milestone this week, roughly six months after the virus began spreading rapidly in late winter.
Health authorities have recorded well over 160,000 suspected cases since the outbreak took hold, and close to 20,000 confirmed ones. More than 80% of cases have been in children under five, the age group most likely to die from complications such as pneumonia and brain swelling.
The context: a vaccination gap
Measles is one of the most contagious diseases known, but it is also one of the most preventable. Two doses of vaccine give lasting protection, and outbreaks are generally kept in check when around 95% of children are immunised.
Bangladesh was once a regional success story on childhood vaccination. The World Health Organization and UNICEF have linked the current crisis to gaps in the country's immunisation programme that opened during the political turmoil of 2024 and 2025, after the fall of Prime Minister Sheikh Hasina. WHO estimates suggest the share of children fully vaccinated fell from 93% in 2024 to 86% in 2025. That drop left several million children unprotected, enough for the virus to spread quickly through crowded cities.
An emergency vaccination campaign began in April, first in the worst-hit areas and then nationwide. It has reached more than 18 million children. But about four million are thought to have been missed, and officials concede the drive did not achieve the level of coverage needed to stop transmission.
A spokesman for the Directorate General of Health Services, Zahid Raihan, acknowledged: "We couldn't achieve herd immunity." Professor Mahmudur Rahman, a public health expert, said the country "has never witnessed so many children dying from measles".
Why it matters
The scale of the death toll reflects more than the virus. Hospitals, particularly in Dhaka, have been overwhelmed, with shortages of beds and staff as sick children keep arriving. The pressure has been made worse by a seasonal surge in dengue, which is competing for the same wards.
The outbreak is also a warning beyond Bangladesh. Childhood immunisation is easy to disrupt and slow to rebuild. When routine vaccination slips for even a year or two, whether because of conflict, political upheaval or supply problems, measles is usually the first disease to return, and children pay the price.
Key points
- Measles deaths in Bangladesh have passed 1,000 this year, mostly among young children.
- More than 160,000 suspected cases have been recorded since the outbreak began.
- Over 80% of cases involve children under five.
- Full vaccination coverage fell from 93% to 86% between 2024 and 2025, according to WHO estimates.
- An emergency drive has vaccinated 18 million children, but around four million remain unreached.
The outlook
Health officials say vaccination will continue, with the focus shifting to finding the children the campaign has not yet reached, often in poorer urban districts and remote rural areas. Closing that gap is the only reliable way to end the outbreak.
Until it is closed, the virus will keep finding unprotected children. The death toll, already higher than any in the country's recent history, is likely to keep rising for some time.
Image: TowfiqSultan via Wikimedia Commons, CC BY-SA 4.0