Bangladesh measles outbreak kills 336 children as vaccination gaps widen

Bangladesh is in the grip of its worst measles outbreak in decades. Since mid-March, the virus has killed 336 children and sickened more than 50,000 others. Hospital wards across the country are packed with young patients struggling to breathe, their small bodies fighting an infection that has no cure once it takes hold. On May 4 alone, seventeen children died in a single day—a grim marker of how quickly the crisis is accelerating.

The outbreak's roots trace back to political chaos. In 2024, an uprising toppled the government of Sheikh Hasina, and in the upheaval, a scheduled measles vaccination campaign never happened. The disruption left a generation of children dangerously exposed. Vaccination coverage, which had been climbing steadily, collapsed to just 59 percent. Public health experts say you need 95 percent coverage to create herd immunity—the protective shield that keeps even unvaccinated children safe. Without it, the virus spreads unchecked through the youngest and most vulnerable.

Rina Begum, 45, knows this intimately. She sat in a measles ward in Dhaka cradling her three-year-old granddaughter Afia, whose small body had been ravaged by the infection. Afia had missed her second vaccine dose at eighteen months, a gap that left her defenseless. "I was almost sure I was going to lose her today," Begum said, her eyes red from sleepless nights and fear. By the time Afia was placed on oxygen, her condition began to turn. When Begum spoke, her granddaughter was finally improving—a small mercy in a ward full of children fighting for their lives.

Measles is ruthlessly efficient. It spreads through coughs and sneezes, and once inside the body, it has no specific treatment. In children, it strips away strength, makes breathing labored, and in the worst cases, reaches the brain and causes swelling that can mean permanent damage or death. Most of the children hospitalized have been between six months and five years old—the age when the body is still learning to fight back.

Brishti Akhtar, just twenty years old, watched her fourteen-month-old son Siam sleep with an oxygen tube in his nose. He had been vaccinated at ten months, but that single dose was not enough in a world where herd immunity had collapsed. Siam spent ten days in intensive care at Dhaka's Shishu Hospital before stabilizing enough to move to the measles ward. "I did not expect to get my son back," Akhtar said. Now, with medical support, he was out of immediate danger.

The government has mobilized. Health officials, working with the UN children's agency and the WHO, launched an emergency vaccination campaign on April 5. Nearly seventeen million children have been vaccinated since then. But the math is sobering: it will take roughly a month before the effects become visible in falling case numbers. Senior health ministry official Abu Hussain Md Moinul Ahsan acknowledged that without broader herd immunity, even vaccinated children remain at risk.

Hospitals are straining under the load. The army has erected a twenty-bed field hospital on the grounds of Dhaka Medical College Hospital, ready for the surge. Hospital director Brigadier General Md Asaduzzaman said the facility was built in preparation for further cases. But there is another threat gathering on the horizon: Bangladesh has experienced heavy rainfall in recent weeks, and with it comes a rise in mosquitoes carrying dengue. The field hospital, Asaduzzaman noted, will likely be needed for that crisis too. For now, the focus remains on measles—on vaccinating children fast enough, on keeping hospital beds available, on preventing more families from losing their children to a virus that should have been preventable.