Geographic clusters reveal MND risk varies dramatically by location across Australia

Every year in Australia, a disease kills roughly as many people as two-thirds of the nation's road toll. Motor Neurone Disease arrives without warning, progresses without mercy, and leaves no survivors. The average lifespan from diagnosis to death is between two and three years. Patients lose the ability to walk, then talk, then breathe on their own. There is no cure. And for 90 percent of cases, there is no known cause—only the certainty that something in the environment, in the work people do, in where they live, is triggering the disease.

Raj Arrow, a rugby league player for the South Sydney Rabbitohs, walked onto the field for his 99th appearance three months after his diagnosis. The stadium rose to its feet. What made the moment matter was not the milestone but the defiance: a man playing a contact sport while his nervous system was collapsing, while the disease was already stealing function he would never recover. Arrow has since raised a million dollars for research. Before him, AFL legend Neale Daniher, who died this year, had channeled his diagnosis into a charity called Fight MND that has raised more than 115 million dollars over the past decade. These are the famous cases. They are not the whole story.

Motor Neurone Disease affects roughly eight in every 100,000 Australians. The disease is getting worse. Between 1986 and 2023, the number of annual deaths tripled—from 238 to 781. But the deaths are not distributed evenly across the country. Research led by Professor Dominic Rowe at Macquarie University has found something stark: if you live in rural or regional Australia, you are 40 percent more likely to die from Motor Neurone Disease than if you live in a city. The variation does not stop there. Even within cities, the risk shifts depending on where you live, what you do for work, what you do for recreation. Tasmania's mortality rate is 40 percent higher than New South Wales. South Australia has the second-highest rate in the country. The disease is clustering. Something is causing it. No one yet knows what.

Helen Dalton, an independent member of the New South Wales parliament representing the Riverina region, noticed the pattern in her own electorate: seven times the national average number of cases. She began asking why. The research backing her instinct has become impossible to ignore. Environmental risk factors—exposure to metals, pesticides, head injury, viral infections—appear in the data. The clusters point to causes. But without systematic tracking, without a registry that maps cases across time and place, researchers are working blind.

New South Wales has become the first jurisdiction in the world to declare Motor Neurone Disease a notifiable disease. Cases will now be registered, tracked, and mapped. The data will be made available to researchers like Rowe and his team, who currently follow 270 patients. Ron Hobden, known as Hobbo, is one of them. Three years ago, when he was diagnosed, no such registry existed. His wife, Annie, spoke for him at the government announcement in Sydney. The family had moved from Gunnedah, a regional town in New South Wales, to the city because they could not access adequate care where they lived. "We were gobsmacked," Annie said, "that this didn't exist. Why didn't we know? Why is MND occurring in places like the Murray?" The registry, she said, would do more than generate data. It would help build the services and infrastructure that people in regional areas desperately need.

Health Minister Ryan Park framed the register as a tool for understanding. Researchers would be able to access the data through ethics approval and begin to see patterns—what is happening, why it is happening, where it is happening, who it is happening to. But New South Wales alone cannot answer these questions. The Hobden family, along with others affected by the disease, are calling for a nationwide register. "MND doesn't stop at borders," Annie said. "So why should we?" A paper published by Rowe in May made the case for a national plan. The clusters are real. The causes are waiting to be found. The only question is whether Australia will build the infrastructure to find them before more people die.