Fresh clues in Indigenous gene mystery

Portuguese sailors were not to blame for introducing a rare neurodegenerative disorder to the Aboriginal people of northern Australia, a study has confirmed.

Instead, it now appears the mysterious cluster of Machado-Joseph Disease (MJD) in Northeast Arnhem Land either traces back to Asia, or arose from spontaneous genetic mutations.

The research, published last week, has shed fresh light on a question that has puzzled academics for decades.

Sporadic cases of MJD,

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