Biotech firm CSL CSL.AX, one of Australia's largest companies by market value, dropped 3%, dragging its export-focused healthcare peers .AXHJ sharply lower as well. Updates throughout Jan 27 (Reuters) - Australian shares dived into correction territory on Thursday, reversing early gains, as tech, healthcare and gold stocks slumped after the U.S. Federal Reserve signalled an interest rate hike was in the offing. Overnight, Wall Street also reversed its course to close lower after Fed Chairman Jerome Powell warned that inflation remained above the central bank's long-run goal and supply chain issues might be more persistent than previously thought.