Table 2.

Antimicrobial resistance of Campylobacter isolates of food origin collected during 2001–2002 in Dublin, Belfast and Galway

Amp, Ampicillin; Eft, ceftiofur; Chl, chloramphenicol; Cip, ciprofloxacin; Ery, erythromycin; Nal, nalidixic acid; Str, streptomycin; Tet, tetracycline (μg/disc).

^*Figures in parentheses show the number of isolates tested for resistance to Eft (ceftiofur).

Superscripts ^{a, b, c, d} denote statistical significance between values for an antimicrobial for C. jejuni isolates (P⩽0·05) (χ² analysis). Superscripts ^{1, 2, 3, 4} denotes statistical significance between values of an antimicrobial for C. coli isolates (P⩽0·05) (χ² analysis).