Preliminary Results for the Year Ended 31 March 2011

Immunodiagnostic Systems Holdings plc (AIM: IDH), a leading producer of diagnostic testing kits for the clinical and research markets, announces its preliminary results for the year ended 31 March 2011.

IDS operates in the in-vitro diagnostics (“IVD”) market. The Company designs, manufactures and sells immunoassay kits which are used to measure or detect particular substances within a sample, thus aiding the diagnosis or monitoring of a disease or providing information for research studies.