(19)

(11)

EP 0 998 199 A1

(12)

(43) Date of publication: 10.05.2000 Bulletin 2000/19 (21) Application number: 98931854.8 (22) Date of filing: 02.07.1998

(51) International Patent Classification (IPC)7: A01N 37/44 (86) International application number: PCT/CA9800/648 (87) International publication number: WO 9901/032 (14.01.1999 Gazette 1999/02)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 03.07.1997 CA 2209591 (71) Applicant: UNIVERSITE DU QUEBEC A MONTREAL Montreal,Quebec H2X 3J8 (CA)	(72) Inventors: ALLARD, France St.-Leonard, Quebec H1S 2C7 (CA) SARHAN, Fathey St.-Laurent, Quebec H4K 1V5 (CA) HOUDE, Mario Longueuil, Quebec J4L 2A4 (CA) (74) Representative: O'Connell, Maura et al F. R. Kelly & Co.,27 Clyde Road,Ballsbridge Dublin 4 Dublin 4 (IE)