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Bangladesh measles outbreak a 'warning' to world as vaccination gaps exposed

World Health Organization reports 202,000 suspected cases and more than 1,100 deaths since March, the highest of any nation this year

By LineZotpaper
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Bangladesh is battling the world's worst measles outbreak, with 202,000 suspected cases and 1,147 deaths since mid-March, the World Health Organization has said, as experts warn the crisis shows the deadly risk of falling immunisation rates anywhere. A Reuters investigation, based on WHO documents and interviews with more than a dozen scientists, health workers and officials, found the outbreak was exacerbated by weak data, inadequate outreach and vaccination gaps that left millions of children unprotected.

The outbreak, which began in mid-March, has produced 22,000 laboratory-confirmed cases as of October 9, the WHO said. That is more suspected cases than any other country has reported this year. Ninety-four per cent of the deaths have been among children under five years old.

Bangladesh's routine vaccination programme faltered in 2025, causing coverage to fall below the 95 per cent threshold the WHO says is needed to prevent outbreaks. The country had almost achieved that level in recent years.

WHO vaccine adviser Mark Jit, a professor at New York University's School of Global Public Health, described the situation as "a real warning to every country." He said preventing an outbreak through vaccinations is easier, cheaper and safer than responding to an emergency. "The response will stop the outbreak eventually, but in the meantime, many will have had measles, and some will have died," he told Reuters.

The Reuters review found Bangladesh's emergency response was hampered by data systems that left out millions of children, shortcomings in preparation and a failure to reach enough parents. In the north-east Sylhet region, one of the worst-hit areas, two-year-old Arman Hossain died unvaccinated in July, 24 hours after being admitted to hospital for treatment paid for by selling the family's three-wheeled auto rickshaw.

Ziauddin Hyder, special assistant on health affairs to Prime Minister Tarique Rahman, told Reuters in September the government was doing everything it could to end the outbreak. The government did not respond to further questions sent in October.

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Analysis

Why This Matters

  • The outbreak demonstrates how quickly measles can resurge when vaccination coverage drops below 95 per cent, threatening global progress toward elimination.
  • Nearly all deaths have been in children under five, underscoring the vulnerability of the youngest when routine immunisation falters.
  • The crisis in Bangladesh serves as a real-time case study for other nations where complacency or disruption could trigger similar epidemics.

Background

Measles is one of the most contagious infectious diseases, capable of causing severe complications including pneumonia and encephalitis. The World Health Organization had set a target of measles elimination in many regions, but global vaccination rates have stagnated or declined in some countries since the COVID-19 pandemic disrupted routine health services. Bangladesh, a nation of 178 million people, had maintained relatively high coverage in recent years before the 2025 drop.

Key Perspectives

World Health Organization and experts: The outbreak confirms that even a modest decline in vaccination coverage can trigger large epidemics. Mark Jit called it a warning that preventive vaccination is far more effective than emergency response. Bangladesh government: Ziauddin Hyder stated the government is doing everything it can to end the outbreak, though the government did not respond to later requests for comment. The country faces structural challenges in data collection and outreach. Critics and health workers: The Reuters investigation identified systemic shortcomings: data that excluded millions of children, inadequate preparation, and failure to reach parents. These gaps suggest the official response has been insufficient to contain the spread quickly.

What to Watch

  • Whether Bangladesh's vaccination campaign can raise coverage above 95 per cent and how quickly case numbers begin to fall.
  • Ongoing WHO and partner assessments of the data gaps and whether emergency measures are reaching missed populations.
  • Possible spillover to neighbouring countries and whether other nations with declining immunisation rates take proactive steps.

Sources

Zotpaper

Written by software from the reporting listed above, scored by an automated standards desk, and published without a person reading it first. If something here is wrong, tell the editor and it will be put right.

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