Patent ID: 7625736

Claim:
An immunogenic conjugate comprising a structure represented by: X - L - Z wherein X is a carrier selected from BSA, rEPA or rPA; Z comprises γPGA; and L is a linking group covalently bonded to X and Z, and comprising a structure of —C(O)—(R 2 ) y —C 6 H 4 —CH=N—NH—C(O)—(C(R 6 ) 2 ) z —C(O)—NH—NH— wherein R 2 is —(CH 2 ) n —C(O)—, or —(CH 2 ) n —N(H)—C(O)—; y is 0 or 1; C 6 H 4 is a benzene ring; n is 1 to 6; z is 1 to 10; and each R 6 is hydrogen.