Notifiable Interests

microgen

Information Management Solutions

www.microgen.co.uk

6 March 2003

Microgen plc

Notifiable Interests

The Company was notified on 5 March 2003, that under Sections 198-202 of the
Companies Act 1985, Schroder Investment Management Limited is interested in
7,851,905 Ordinary Shares representing 13.44% of the issued share capital.

The shares are registered in the name of:

No. of shares

Schroder Unit Trusts Limited (SUTL) 6,924,050

Imperial Pensions Nominees Limited 427,855

Nortrust Nominees Ltd 500,000

If you require further information please contact:

G.E. Liddle, Company Secretary [phone]