Adherence of 12 members of the Pasteurellaceae to the SJPL (filled bars) or NPTr (empty bars) cell line after 3 h of incubation. The strains include A. pleuropneumoniae serotype 1 S4074 and FMV91-6514, A. pleuropneumoniae serotype 5b L20 and 05-6501, A. pleuropneumoniae serotype 5a 05-4817, A. pleuropneumoniae serotype 7 WF83 and 05-3695, H. parasuis serotype 5 Nagasaki and 29755, A. suis serotype O2/K2 H91-0380, and P. multocida capsular type A 88-761 and capsular type D 1703. Asterisks represent statistical differences (P < 0.05) in adherence of the given strain between the two cell lines.