VET03-A: Methods for Antimicrobial Disk Susceptibility Testing of Bacteria Isolated From Aquatic Animals; Approved Guideline VET04-A2: Methods for Broth Dilution Susceptibility Testing of Bacteria Isolated From Aquatic Animals; Approved GuidelineâSecond Edition VET03/VET04-S2: Performance Standards for Antimicrobial Susceptibility Testing of Bacteria Isolated From Aquatic Animals; Second Informational Supplement (Includes VET03-A, VET04-A2 and VET03/VET04-S2)