Operating loss at Quest Quest Diagnostics Limited recorded an operating loss for the year ended 31 December 2006.

The statements for the clinical and routine trials subsidiary of NYSE listed Quest Diagnostics Inc, are hardly current but were signed off by the company and its auditors in March 2008. They show that turnover in the period rose 12% to £45m, however cost of sales increased by roughly double this proportion to £38m. This,…