EXHIBIT 4.2 SEROLOGICALS CORPORATION 4.75% CONVERTIBLE SENIOR SUBORDINATED DEBENTURES DUE 2033 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this "AGREEMENT") is made and entered into as of August 20, 2003 by and among Serologicals...Registration Rights Agreement • August 21st, 2003 • Serologicals Corp • Biological products, (no disgnostic substances) • New York
