Trying to introduce a disease that is so ancient that it's relatively new to our clinicians
A disease long absent from the Australian imagination has returned to its most vulnerable edges — the remote communities of the Kimberley, Northern Territory, and South Australia, where diphtheria is spreading despite vaccination rates that would satisfy most public health benchmarks. With over 220 cases nationally and 85 in Western Australia alone, officials are confronting an uncomfortable truth: that immunisation, however necessary, cannot substitute for the healthcare infrastructure, workforce, and sustained presence that remote Aboriginal communities have long been denied. The outbreak, traced to a strain first identified in Queensland four years ago, is less a failure of medicine than a reckoning with geography, history, and the limits of policy applied from a distance.
- A disease most Australians assumed was extinct is spreading through remote communities at a pace that has overwhelmed already stretched local health services.
- Current vaccines reduce the severity of diphtheria but do not block transmission, meaning even a 90% vaccination rate cannot halt an active outbreak in close-contact communities.
- Around 18,000 Aboriginal people across three regions remain at highest risk, yet clinics lack the staff to vaccinate them — people are asking for the jab, but there is no one to give it.
- Clinicians in the Kimberley are encountering a disease so unfamiliar to modern practice that its symptoms — sore throats, skin infections — are easily mistaken for the everyday illnesses that fill their waiting rooms.
- A two-phase vaccination rollout is underway, with federal funding secured, but reaching 40 scattered communities across a region the size of Austria demands far more than money — it demands bodies on the ground.
- Families like Emma Venables' in Wyndham only learned of the outbreak when their children were already in hospital, exposing a communication failure that has left many communities underprepared.
A disease most Australians believed had disappeared is spreading through remote Western Australia, and state health officials are now saying that vaccination alone will not be enough to stop it. Paul Armstrong, who leads communicable disease control for the state, delivered that sobering assessment as WA recorded 85 confirmed cases — part of a national outbreak exceeding 220 infections. The disease is concentrated in the Kimberley region, with further cases in the Northern Territory and South Australia. The strain was first identified in Northern Queensland four years ago and has since found its way into communities where healthcare infrastructure is already under severe strain.
The vaccination campaign launched in May has reached 2,000 people, but roughly 18,000 Aboriginal residents across three affected regions remain at highest risk. The problem is not reluctance — people are coming forward seeking vaccines. The problem is that current vaccines prevent severe illness but not infection or transmission, and that clinics simply do not have the staff to meet demand. Western Australia already maintains vaccination rates above 90 percent in the Kimberley, yet the outbreak persists, exposing the gap between policy targets and on-the-ground reality.
The second phase of the rollout will require teams to travel to individual remote communities, working alongside Aboriginal health organisations. State officials are in discussions with the federal government, which has already announced a multi-million-dollar national response. But as Clint Bussey of Nindilingarri Cultural Health Services put it plainly: the Kimberley is roughly the size of Austria, with 40 scattered communities and a workforce that cannot carry this alone. Not every community has daily access to a clinic or medical staff.
Clinicians face an additional challenge: diphtheria presents as a sore throat or skin infection — symptoms indistinguishable from the conditions that fill Kimberley clinics every day. Lorraine Anderson from the Aboriginal Medical Service described managing a disease so ancient it has become almost unknown to modern practitioners. Meanwhile, families like Emma Venables' in Wyndham only learned of the outbreak when her sons were already in hospital with sore throats. She was struck that no warning had reached her beforehand. Health Minister Meredith Hammat said the state responded immediately upon detecting the first case, coordinating contact tracing and offering free vaccines — but for many families, awareness arrived too late.
A disease most Australians thought had vanished decades ago is spreading through remote Western Australia, and officials are now saying that simply vaccinating people won't be enough to stop it. Paul Armstrong, who directs communicable disease control for the state, made that stark assessment as Western Australia grapples with 85 confirmed cases of diphtheria—part of a national outbreak that has infected more than 220 people across the country this year. The disease is concentrated in the Kimberley region, though cases have also appeared in the Northern Territory and South Australia. The strain causing the outbreak was first identified in Northern Queensland four years ago and has since spread to vulnerable populations in remote areas where healthcare infrastructure is already stretched thin.
The vaccination campaign underway since May has reached 2,000 people across three affected regions, but Armstrong acknowledged the effort is only a beginning. Around 18,000 Aboriginal people in those three areas remain at highest risk, along with many non-Aboriginal residents. The challenge is not simply one of willingness to vaccinate. Current vaccines, Armstrong explained, do not prevent infection or transmission of the disease. Instead, they reduce the severity of illness if someone does become infected. Western Australia already maintains vaccination rates above 90 percent in the Kimberley and surrounding regions, yet the outbreak persists—a fact that underscores how vaccination rates alone cannot contain spread in communities where the disease is actively circulating.
The second phase of the vaccination rollout will require far more intensive effort. Teams will need to travel to individual remote communities, working closely with Aboriginal health organizations and the Aboriginal Health Council of Western Australia. State officials are already in discussions with the federal government about additional funding and resources to make this happen. The federal government has already announced a multi-million-dollar boost to address the outbreak nationally, but the scale of the challenge in Western Australia's vast Kimberley region—an area roughly the size of Austria with 40 scattered communities—demands sustained commitment and coordination.
Clinical staff in remote areas face an unfamiliar adversary. Lorraine Anderson, from the Aboriginal Medical Service, described the difficulty of managing a disease so ancient that it has become almost new to modern clinicians. Diphtheria typically presents as a sore throat or skin infection, symptoms that health workers see constantly in Kimberley clinics. Without specific awareness and training, cases could easily be misdiagnosed or missed entirely. Caitlyn White from the Aboriginal Health Council of Western Australia emphasized that workforce capacity is a critical bottleneck. Clinics are already stretched managing other health demands, and while people are coming forward asking for vaccinations, there simply aren't enough staff to administer them efficiently.
The outbreak has caught many families off guard. Emma Venables, a mother of two boys in Wyndham, had never heard of diphtheria until she took her sons to hospital last week with sore throats. Only then did staff begin asking about the disease. She was struck by the lack of public communication about what she saw as a significant population health threat. "I was surprised that we hadn't had any notes come home about it," she said, noting that awareness seemed to come too late for many families. Health Minister Meredith Hammat said the state began responding immediately when the first case was detected, coordinating with Aboriginal health services, conducting contact tracing, and offering free vaccines to residents of affected regions and those with regular contact with Aboriginal communities.
Clint Bussey, a program manager at Nindilingarri Cultural Health Services, articulated what many in remote health services know well: the region lacks the workforce infrastructure to mount an effective vaccination campaign without external support. "We're about the size of Austria, and we have 40 communities," he said. "Our workforce isn't what it could be." Not all communities have access to a clinic or medical services every day. What the region needs, Bussey suggested, are more people on the ground—trained, equipped, and willing to travel to remote communities to deliver vaccines and spread awareness. The outbreak has exposed a gap between vaccination policy and the reality of delivering healthcare across vast, sparsely populated terrain where clinical expertise is scarce and access is measured in hours of travel.
Citas Notables
The effect of the vaccine is not so much about the transmission of the germ, but it's about if you get infected with the germ, then your likelihood of having severe disease is very low— Paul Armstrong, director of communicable disease control
We're about the size of Austria, and we have 40 communities. Our workforce isn't what it could be— Clint Bussey, Nindilingarri Cultural Health Services
La Conversación del Hearth Otra perspectiva de la historia
If vaccination rates in the Kimberley are already above 90 percent, why is the outbreak still spreading?
Because the current vaccines don't stop transmission. They reduce how sick you get if you catch it. So you can be vaccinated and still get infected and pass it on. The outbreak is moving through the community regardless of vaccination coverage.
That seems like a failure of the vaccine itself.
Not quite. The vaccine does what it was designed to do—protect against severe disease. But diphtheria in these communities isn't spreading because people are unvaccinated. It's spreading because the strain is circulating in a population that hasn't encountered it in generations, and the healthcare system doesn't have the capacity to contain it.
So what would actually stop it?
Rapid identification and isolation of cases, contact tracing, and getting vaccines to people before they're exposed. That requires clinical staff who recognize the disease, enough workers to reach remote communities, and coordination across a region the size of Austria with 40 scattered communities.
Why haven't clinicians seen this before?
Diphtheria was nearly eradicated in Australia. Most working clinicians have never encountered it. When someone comes in with a sore throat—which is common in the Kimberley—they might not think to test for diphtheria. By the time it's identified, it's already spread.
What does the second phase of vaccination look like?
Teams traveling to individual communities, working with local Aboriginal health organizations. It's labor-intensive and requires planning, coordination, and sustained funding. The state is asking the federal government to help resource it.
And if they don't get that support?
Then you have 18,000 at-risk people in three regions, many in places without daily access to medical services, and a workforce already stretched managing other health demands. The outbreak could continue spreading.