Aviron, of Mountain View, Calif., named John Bluth senior manager, corporate communications.

Avitar Inc., of Canton, Mass., named Andre Decarie vice president, business development of its polymer division.

Biogen Inc., of Cambridge, Mass., appointed Kees Been vice president, business and market development.

Diversa Corp., of San Diego, appointed to its board of directors Mark Leschly, managing director of Rho Management Co. Inc.

Genta Inc., of Lexington, Mass., elected to its board of directors Mark Rogers, president of Paramount Capital Inc.

Human Genome Sciences Inc., of Rockville, Md., named Vivian Albert director, molecular biology.

Matritech Inc., of Newton, Mass. appointed Stephen Ip, vice president of Far Eastern operations.

Medinox Inc., of San Diego promoted Wei-Cheng Liaw to vice president, pharmaceutical development.

Photogen Technologies Inc., of Knoxville, Tenn., named Gerald Wolf medical director.

SciClone Pharmaceuticals Inc., of San Mateo, Calif. promoted Shawn Singh to chief business officer.

Serono Laboratories Inc., of Norwell, Mass. named Ellen Frank president.