CIAO3 and pertussis: 6 strongly and exclusively recognized linear Bp epitopes (from Bp virulence proteins) could be identified in 10/10 serum samples from patients with whooping cough; 2 peptides were derived from pertussis toxin components (1 from PtxS4, and 1 from cyaA); 3 peptides from adhesion proteins (2 from prn, and 1 from FHA); and 1 peptide from the transporter protein ompP.