A growing diphtheria outbreak in Nigeria’s Plateau State has killed at least 25 people and left about 300 suspected cases, putting children and the country’s immunization system under renewed scrutiny.
The alarm is growing in Plateau State, north-central Nigeria, where health authorities are battling a worsening diphtheria outbreak. About 300 suspected cases and 25 deaths have now been reported, with Jos North among the most affected areas. The outbreak has prompted intensified surveillance and community mobilization, while schools across the state have been ordered to close from September 7 as a precautionary measure.
Diphtheria is a bacterial infection that can spread through respiratory droplets and close contact. It can cause severe disease affecting the throat and airways and, in serious cases, lead to complications involving the heart, nerves and other organs.
Yet the disease is preventable through vaccination.
When prevention fails
The resurgence in Plateau raises a crucial public health question: how can a vaccine-preventable disease continue to claim lives among children?
Recent national data from the Nigeria Center for Disease Control and Prevention point to an important vulnerability. Eight states, including Plateau, account for 98 per cent of confirmed diphtheria cases, while around 68 per cent of confirmed cases reported among unvaccinated people
For health authorities, the issue therefore goes beyond responding to an outbreak once it has begun. Maintaining high routine immunization coverage remains essential to ensuring that children are protected before they encounter the disease.
Delayed care, limited supplies
Vaccination gaps are not the only challenge facing the response in Plateau. Health authorities have also reported shortages of diphtheria antitoxin, while some patients are reaching health facilities late, when the disease may already have become severe. Difficulties obtaining specialized containers for collecting and transporting laboratory samples have also complicated the confirmation of suspected cases.
These constraints illustrate another dimension of the outbreak: preventing deaths requires more than vaccines. Health systems must also be able to identify suspected cases quickly, confirm them, provide appropriate treatment and trace people who may have been exposed.
In Jos North, local authorities have already strengthened surveillance and community outreach. Additional logistics, including motorcycles for health workers, are being used to improve contact tracing and enable teams to reach communities more rapidly. Radio awareness and other community activities are also being deployed.
A question of equitable protection
The outbreak also highlights the equity dimension of immunization. A child’s protection against a vaccine-preventable disease depends not only on individual choices but also on whether vaccination services are available, accessible and continuous.
When children miss routine doses, their vulnerability can persist until an outbreak
exposes the gap. For communities with limited access to health facilities, late diagnosis and delayed treatment can further increase the risk of severe illness and death.
Nigeria’s response is therefore taking place on two fronts: containing the immediate outbreak while trying to close the immunization gaps that allow preventable infections to return.
Beyond the emergency
Closing schools may temporarily reduce opportunities for transmission, but it cannot replace sustained prevention. The longer-term challenge is to ensure that children receive the recommended vaccines on time and that health facilities have the supplies, trained personnel and surveillance capacity needed to respond when suspected cases appear.
The Plateau outbreak is a reminder that progress against vaccine-preventable diseases can remain fragile. For Nigeria, protecting children from diphtheria will ultimately depend not only on controlling the current outbreak, but on ensuring that no child is left without access to the basic protection that vaccination can provide.
