Fig. 1From: Detection of pathogenic Escherichia coli on potentially contaminated beef carcasses using cassette PCR and conventional PCRCCD images of a cassette with 9 trenches and 4 sets of reaction units per trench (a) at 1st PCR cycle and (b) at 35th cycle. Four columns from left to right in 9 trenches (rows) have O157, eae, stx1 and stx2 primers. The last trench (9th) has the positive control and 8th trench has the negative control. Trenches 1–7 have 7 carcass swab samplesBack to article page