Three more children died with measles symptoms in the 24 hours ending July 6, bringing Bangladesh's combined confirmed and suspected death toll to 741. [1] The number moved from 738 — where this paper's July 5 edition held it, alongside the still-open vaccination coverage gap and the school-calendar question — with the same structural explanation for each increment: the May vaccination drive reached 18.4 million children but did not reach the 95 percent coverage threshold required for measles herd immunity in all areas. [1]

Mushtuq Husain, a public health expert who has tracked the outbreak, confirmed to journalists that the threshold remains unmet. [2] The gap between campaign scale and herd-immunity threshold is not a small rounding error. Measles is among the most contagious human pathogens. It requires 95 percent or higher immunization rates within a population to interrupt transmission — a fraction of a percent below that, and enough susceptible individuals remain to sustain chains of infection. Bangladesh's 18.4 million-child campaign was historically large. It was not large enough, or it did not reach the right geographies. [2]

The breakdown as of July 6: 648 suspected deaths and 93 laboratory-confirmed deaths, for a total of 741. [1] Total suspected cases: 106,565. Laboratory-confirmed cases: 12,791. Hospitalizations since March 15: 89,734, of whom 86,062 have recovered. [1] The confirmed-death number — 93 — has not moved recently, which raises a documentation question: are deaths being classified as confirmed at the rate that laboratory confirmation is being achieved, or is the confirmed column lagging the actual pace of PCR-verified fatalities? That distinction matters for the court record.

There is a court record. In response to a petition filed by public interest lawyers, Bangladesh's High Court ordered the government to submit a sworn affidavit addressing vaccine storage, supply adequacy, district-level coverage, cold-chain integrity, and whether compensation has been offered to families of the dead. [3] That affidavit was due approximately around June 18. As of publication, no media outlet — Bangladeshi or international — has confirmed that the affidavit was filed, inspected by the court, or generated any follow-up order. The absence of reporting is not evidence of filing. [3]

If the affidavit was filed on schedule, it is the most detailed public record of Bangladesh's vaccine-supply infrastructure that currently exists. It would name districts where coverage fell short, identify the cold-chain failures that allowed vaccine potency to degrade, and specify which authorities were responsible for each. If it was not filed, the court's enforcement mechanism becomes the story. Either way, the affidavit — not the rolling death count — is where the accountable record of this outbreak lives.

Hospital infection-control failures represent a second, distinct transmission pathway now documented in the outbreak. [3] Measles spreads through airborne droplets and can remain viable in the air of a room for up to two hours after an infected person has left. Without appropriate isolation protocols — negative-pressure rooms or, where those are unavailable, cohorting of suspected cases and strict mask use by staff — hospitals become amplification sites. This is not a novel finding. Nosocomial measles transmission has been documented in Bangladesh and across South Asia in prior outbreaks. It should be the subject of explicit national guidance and daily enforcement. It has not, as of publication, appeared in official communications as a named priority. [2]

The coverage-gap explanation and the hospital-transmission explanation are not in competition. They operate in series: insufficient immunization creates a susceptible pool, and hospital infection-control failures accelerate spread within that pool. Closing either gap would reduce deaths. Closing both would stop the outbreak. [3]

The toll will keep moving until one of three things happens: the coverage threshold is finally reached through ongoing catch-up vaccination, hospital transmission is interrupted through protocol enforcement, or the pool of susceptible children is simply exhausted by infection. The first two require policy action. The third requires more deaths. The court's affidavit is the map that distinguishes which path the government is actually on.

-- KENJI NAKAMURA, Tokyo