A vaccination campaign in Nigeria's Borno state reached over 350,000 children in a single city, a massive logistical push against a historic epidemic. The effort in Maiduguri far exceeded its initial targets, delivering crucial protection to a vulnerable population.
## A Campaign Against a Historic Outbreak
Nigeria is facing one of its most severe diphtheria epidemics in history. Since May 2022, the country has recorded over 65,000 suspected cases and more than 2,200 deaths. The outbreak was officially declared in 2023, with Borno state among the hardest-hit regions. The humanitarian medical organization Médecins Sans Frontières (MSF) has treated more than 7,400 suspected cases in Borno since that year, with 4,200 cases in the past year alone. The disease, which spreads through respiratory droplets, can be fatal in about 30% of cases for unvaccinated people without proper treatment, posing a particular risk to young children.
## Mobilizing to Protect Maiduguri's Children
To combat the surge, MSF and the Borno State Ministry of Health launched a targeted vaccination campaign for children up to 14 years old in the Maiduguri Metropolitan Council area. The first round, held in February 2026, was a stunning success, reaching 490,000 children against an initial target of 387,000. A second round followed in April, aiming to boost immunity for 360,000 of those initially reached. MSF provided comprehensive logistical support for the campaign, including vaccine storage, transportation, and remuneration for teams, while the Ministry of Health supplied the vaccines. Community response was enthusiastic, leading to high coverage.
## The Critical Need for Sustained Protection
The campaign's impact was immediately visible at the local diphtheria treatment unit, which saw a surge in suspected cases during the vaccination drive. This increase reflected heightened community awareness and improved referrals by health workers, a sign the outreach was working. MSF's emergency coordinator noted the vaccination would significantly boost immunity in the area responsible for most cases seen at their treatment center. However, the effort was constrained by limited vaccine availability, which restricted the scale of the overall response.
The campaign in Maiduguri represents a critical frontline defense in a national health crisis. While the collaborative push protected hundreds of thousands, health officials emphasize that sustained routine immunization, improved access in volatile areas, and tackling vaccine hesitancy remain essential to prevent future surges. For a country grappling with thousands of infections, each vaccinated child in Borno state is a step toward cutting transmission and saving lives.
