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Table 2 Minimum inhibitory concentrations (MIC) for six antimicrobial agents for the Actinobacillus pleuropneumoniae strains (N = 44) isolated from lung samples collected from 60 finishing pigs in 16 out of 20 case herds

From: Etiology of acute respiratory disease in fattening pigs in Finland

  No. of isolates with MIC (μg/ml)
Anti-microbial ≤0.015 0.03 0.06 0.12 0.25 0.5 1 2 4 8 16 32 %Res
PEN     8 16 17   1 2     7
AMP       41    3     7
TET       27 16     1   39
ENR    38 3 3         0
SXTa      38 2 2 2      9
FFN        44       0
  1. MICs equal to or lower than the lowest concentration tested are given as the lowest concentration
  2. Abbreviations: PEN penicillin, AMP ampicillin, TET tetracycline, ENR enrofloxacin, SXT trimethoprim/sulfamethoxazole, FFN florfenicol, %Res Percentage of intermediately resistant or resistant APP isolates out of all isolates
  3. aconcentration of trimethoprim given, in concentration ratio 1/19