Figure 2From: Identification and characterization of serovar-independent immunogens in Actinobacillus pleuropneumoniae Transmission electron microscopy (TEM) analysis of A. pleuropneumoniae outer membrane vesicles (OMVs). TEM images show OMVs isolated from A. pleuropneumoniae MIDG2331 wild-type (A) and ΔdegS (B), ΔnlpI (C) mutants. Red arrows indicate OMVs.Back to article page