Interests of Directors and Connected Persons

30th October 2006 Microgen plc ("Microgen") Notification of Interests of Directors and Connected Persons Microgen announces that, on 30th October 2006 its directors Peter Bertram and Mike Phillips purchased Microgen Ordinary Shares as illustrated in the table below: Name of Number Price at % of Acquired Total % of total director of which issued in name holding holding shares shares class of self following following acquired acquired acquired or spouse transaction transaction (pence) Peter Bertram 11,560 47.0 0.01% Self 46,022 0.04% Mike Phillips 5,316 47.0 0.01% Spouse 105,500 0.10% If you require further information please contact: G E Liddle, Company Secretary 01252 772313
UK 100