Notifiable Interests

microgen

Information Management Solutions

www.microgen.co.uk

9 August 2004

Microgen plc

Notifiable Interests

The Company was notified on the 9th August 2004 that under Sections 198-202 of
the Companies Act 1985, Artemis Investment Management Limited and certain of
its subsidiary companies no longer have a notifiable interest in Microgen plc
Ordinary Shares.

If you require further information please contact:

G.E. Liddle, Company Secretary [phone]