For three years Jack Gray had a cough that just wouldn't go away.
At first the Melbourne father put it down to smoking and getting older, but a year ago he began to fear its cause was something far worse.
Gray, who had worked as a stonemason since he was 19, went to his doctor to insist they investigate his cough further amid reports of an explosion of silicosis cases among those in his industry.
Read more: nzherald.co.nz