Bangladesh is in the grip of its worst measles outbreak in a generation, with the confirmed and suspected death toll among children surpassing 500 and continuing to climb relentlessly. Health department data released on Saturday showed that 13 more children died in the preceding twenty-four hours, taking the official total since 15 March to 512. Hospitals in the capital, Dhaka, have been forced to open dedicated measles wards, yet they remain critically short of intensive care beds, while the virus tears through rural districts and densely packed low-income urban neighbourhoods where routine health services are thinnest.

The sheer scale of the crisis is captured in the more than 62,000 suspected cases now recorded nationwide. Children under five years of age are the overwhelming majority of victims, their vulnerability magnified by malnutrition and an immunisation system that had already been frayed before the pandemic. A mass vaccination drive, supported by UNICEF, has reached around 18 million children, according to the agency’s country chief Rana Flowers. Yet health workers on the ground report that reaching every child in chaotic slums and remote villages amid a spiralling outbreak remains a desperate logistical challenge.

Viewed from Dhaka, the emergency has exposed a troubling information vacuum. Bangladeshi media have noted that the health directorate’s daily bulletins omit basic data on the dead — their ages, socioeconomic circumstances, how long they had been sick, and what treatment, if any, they received before dying. This opacity, in a country accustomed to detailed epidemiological reporting during past health crises, is complicating efforts to target resources precisely where they are most needed and fuelling concerns that the true toll may be higher.

The Bangladesh outbreak is not merely a local tragedy. Analysts in London and Geneva see it as a warning shot for global health security, a brutal illustration of what happens when childhood vaccination coverage backslides. The disruption wrought by COVID-19 left millions of the world’s most vulnerable children unprotected against a disease that is almost entirely preventable. If the country’s emergency drive can close the immunity gap swiftly, the worst may be contained; if not, a death toll already unprecedented in decades risks becoming a lasting scar on the region’s public-health record.