Generex Biotechnology Corp., of Toronto, appointed Gerald Bernstein vice president, medical affairs.

Genesis Bioventures Inc., of New York, appointed Robert Petersen to its scientific advisory board.

Genmab A/S, of Copenhagen, Denmark, appointed Zahed Subhan senior vice president and head of business development.

Genset SA, of Paris, appointed Daniel Cohen director general of scientific strategy.

GenVec Inc., of Gaithersburg, Md., added John Landon to its board.

Geron Corp., of Menlo Park, Calif., added Bruce Scott as vice president of corporate development and Elizabeth Aden as senior vice president and general manager for regenerative medicine.

Gradipore Ltd., of Sydney, Australia, appointed Arthur Hayes to its U.S. board and Leslie Webb to its Australian board.

IGEN International Inc., of Gaithersburg, Md., appointed Stephen Kondor general manager, clinical diagnostics.

ImClone Systems Inc., of New York, added Michael Howerton as vice president, business development.

Immunex Corp., of Seattle, promoted Laura Hamill vice president of marketing for its product, Enbrel.

Incara Pharmaceuticals Corp., of Research Triangle Park, N.C., elected Misha Petkevich to its board.

Keryx Biopharmaceuticals Inc., of Cambridge, Mass., appointed Barry Cohen vice president, business development.

Kosan Biosciences Inc., of Hayward, Calif., appointed Bruce Chabner to its board.

Lombard Odier Immunology Fund, of Geneva, added Barbara Zink to its senior investment management team.

Lorus Therapeutics Inc., of Toronto, appointed Raafat Fahim president and chief operating officer.

Maxygen Inc., of Redwood City, Calif., appointed Alan Shaw president, chemicals.

MDS Pharma Services, of Montreal, a part of MDS Inc., appointed Marika DiMarco associate director, pharmacokinetics.

Medinox Inc., of San Diego, promoted Claire Padgett to vice president of clinical operations.

MelTec GmbH, of Magdeburg, Germany, appointed J|rgen Sachweh chief financial officer.

MPM Capital, of San Francisco, added Nicholas Simon as general partner.

Mylan Laboratories Inc., of Pittsburgh, named Sharad Govil president.

Nabi, of Bacon Raton, Fla., named Gary Siskowski senior vice president, sales and marketing, and Thomas Johns senior vice president, manufacturing operations.

Novirio Pharmaceuticals Ltd., of Cambridge, Mass., appointed James Egan senior vice president, business and corporate development.

Novuspharma SpA, of Monza, Italy, appointed Domenico Criscuolo director of clinical development.

OraPharma Inc., of Warminster, Pa., appointed Michael Alfano as a special consultant to its board.