" from a research point of view , this is the first that we better locate what appeared to be typical parkinson ' s type cases before people develop symptoms , " states staples pd neuroscientist matthew farrer . " we know if nobody inherits the disorder they are going to acquire parkinson ' s disease . " the syndrome was discovered by sequencing the lrrk2 sequence in families with it ' s from the us , norway , ireland and poland .
A genetic mutation has been linked with Parkinson's disease.