Holding(s) in Company

4 March 2008

Microgen plc (the "Company")

Notifiable Interests

The Company received notice from UBS Global Asset Management - Traditional on 3
March 2008 in compliance with the Disclosure and Transparency Rules that it
currently holds less than 3% of the issued share capital of the Company.

If you require further information please contact:

G.E. Liddle, Company Secretary

Tel: [phone]

www.microgen.com