Medical tests on about 3 000 former Ramatex workers who stuck with the company until it folded this year confirm at least 46 cases in which working conditions at the textile factory resulted in significant health problems...While individual results remain confidential, workers and union and medical sources involved said yesterday that the most common problems were eye, ear and lung infections...[B]ut Dr Pieter Pretorius, who played a key role in the examinations, said yesterday that many of these conditions could not be exclusively linked to the workers' role at Ramatex.