Fifty Million Children, One Vaccine: Bangladesh's Largest Immunisation Push
Bangladesh launched a nationwide typhoid conjugate vaccine campaign covering about 50 million children, and has raised full immunisation coverage from 2% in 1979 to 81.6% — preventing an estimated 94,000 child deaths a year.
By the UISC BD Editorial Desk · United Information Service Center · Published 10 September 2026 · 6-minute read
Bangladesh launched a nationwide Typhoid Conjugate Vaccine campaign targeting approximately 50 million children aged nine months to under fifteen years.
Fifty million is roughly the entire population of Spain. It is one of the largest single-antigen vaccination campaigns any country has attempted, and it was delivered by a programme that began at 2 percent coverage.
The Programme Behind It
Bangladesh's Expanded Programme on Immunization launched in 1979. At the time, 2 percent of Bangladeshi children were fully immunised.
Today the figure is 81.6 percent.
That single comparison is one of the most consequential development statistics in the country's history. The EPI is estimated to prevent around 94,000 child deaths every year.
The 2024 human papillomavirus campaign reached 93 percent coverage — a figure that would be respectable in a high-income country and is remarkable in a delta of 170 million people with limited road access in large parts of the country.
Why Typhoid
Typhoid is a disease of water and sanitation. It spreads through contaminated drinking water and food, which makes it a predictable burden in dense urban settlements with imperfect water supply.
It is treatable with antibiotics, but drug-resistant typhoid has been spreading across South Asia, and treatment failure changes the calculation entirely. Vaccinating ahead of resistance is far cheaper than treating after it.
Following the campaign, the vaccine is being integrated into the routine immunisation schedule for children under one year from 2026 — which is the step that turns a campaign into permanent protection for every subsequent birth cohort.
Child Mortality
Bangladesh reduced under-five mortality from 36 per 1,000 live births in 2015 to 33 in 2025.
This is worth reading carefully. It is progress, and it is slower progress than the preceding decades delivered. Bangladesh made spectacular gains in child survival from the 1990s onward, and the remaining deaths are harder to prevent than the ones already averted — they concentrate in the neonatal period, among the poorest households, and in places the health system reaches least well.
The same pattern appears in Bangladesh's maternal mortality record: an outstanding long-run achievement now facing the difficult final stretch.
The Gap the Agencies Are Pointing At
Gavi, UNICEF and the World Health Organization have jointly flagged the equity problem behind the headline coverage figure, and it deserves to be stated in full.
Despite 81.6 percent full coverage, around 400,000 children are under-immunised and 70,000 have received no vaccines at all.
And the geography is counter-intuitive. Urban areas show only 79 percent full coverage, with 2.4 percent zero-dose and 9.8 percent under-immunised — compared with 85 percent in rural areas.
Cities are doing worse than villages. The reason is that Bangladesh's rural immunisation system is built on community health workers with defined catchment populations, while dense informal urban settlements have high population mobility, no fixed address for many households, and no equivalent worker assigned to them.
This is a solvable problem, and it is the specific problem the agencies are asking Bangladesh to solve.
The Measles Test
The system has been under strain. Bangladesh faced a measles resurgence in 2026 requiring emergency vaccination response, and the country's health authorities and UNICEF both reported on it.
Measles is the most contagious disease in routine immunisation, and it is the first thing to return when coverage slips. An outbreak is direct evidence that the 400,000 under-immunised children are not a statistical footnote.
We report this alongside the typhoid campaign because both are true, and because a reader assessing Bangladesh's immunisation system needs the stress test as well as the achievement.
What the Whole Picture Shows
Bangladesh built, from a 2 percent baseline in 1979, a vaccination system now capable of running a 50-million-child campaign and integrating a new antigen into routine schedules.
It has a residual coverage gap concentrated in cities, and a 2026 outbreak demonstrating what that gap costs.
Both belong to the same story of a health system that has done extraordinary things with limited money — visible too in a health budget that has doubled, in domestic vaccine manufacturing, and in the healthtech sector now trying to reach exactly the urban populations the immunisation system misses.
Related reading
- WHO Praises Bangladesh's Maternal Mortality Progress
- WHO Honours Bangladesh in Dili for Beating a 2030 Maternal Health Target
- Bangladesh Nearly Doubles Its Health Budget to Tk 69,409 Crore
- 453 HealthTech Startups and a $200 Million Digital Health Fund
Sources
- "Bangladesh launches nationwide typhoid conjugate vaccine campaign to protect 50 million children," Gavi — gavi.org
- "Nearly half a million children in Bangladesh miss full immunization, despite 81.6% coverage," UNICEF Bangladesh — unicef.org
- "Bangladesh launches nationwide typhoid conjugate vaccine campaign," UNICEF Bangladesh — unicef.org
- "A nation's response, a mother's relief: Bangladesh steps up emergency measles vaccination," World Health Organization — who.int