ARCHIVED - 2009 - Preliminary Results

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Figure 5. Temporal variation in resistance to selected antimicrobials in Escherichia coli isolates from beef cattle; Abattoir Surveillance, 2003–2009

ATM	2002	2003	2004	2005	2006	2007	2008	2009
ATM	75	153	167	122	150	188	176	119
Ampicillin	0.013333	0.03268	0.065868	0.02459	0.053333	0.026596	0.011364	0.016807
Ceftiofur	0	0.013072	0.011976	0	0	0	0	0
Gentamicin	0	0	0.005988	0	0	0.010638	0	0.02521
Nalidixic acid	0	0.006536	0.005988	0	0	0	0	0
Streptomycin	0.12	0.137255	0.101796	0.081967	0.093333	0.117021	0.147727	0.176471
Tetracycline	0.28	0.287582	0.245509	0.221311	0.3	0.356383	0.375	0.302521
Trimethoprim-sulfamethoxazole	0	0.013072	0.011976	0	0.006667	0	0	0.008403

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