EXHIBIT 10.31 EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (the "Agreement"), made as of April 3, 1997 is entered into by OraVax, Inc., a Delaware corporation with its principal place of business at 38 Sydney Street, Cambridge, Massachusetts 02139...Employment Agreement • March 31st, 1998 • Oravax Inc /De/ • Biological products, (no disgnostic substances) • Massachusetts
AGREEMENTOravax Inc /De/ • March 31st, 1998 • Biological products, (no disgnostic substances) • New York
