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Table 2 Number and percentage (in brackets) of enrichment broths from carcass swab samples that were positive for stx1 and/or stx2 but lacked eae. Data is from cassette PCR results

From: Detection of pathogenic Escherichia coli on potentially contaminated beef carcasses using cassette PCR and conventional PCR

Monthtotal # samplesstx1 + vestx1 + vebut eae –vestx2 + vestx2 + ve but eae –vestx1&2 + vestx1&2 + vebut eae -ve
January4293 (33.3)257 (28.0)93 (33.3)
February42153 (20.0)248 (33.3)111 (9.1)
March64163 (18.8)3512 (34.3)133 (23.1)
April882010 (50.0)3818 (47.4)136 (46.2)
May56201 (5.0)328 (25.0)161 (6.3)
June52171 (5.9)302 (6.7)80 (0)
July56320 (0)393 (7.7)260 (0)
August4471 (14.3)193 (15.8)71 (14.3)
September72243 (12.5)449 (20.5)223 (13.6)
October62114 (36.4)3313 (39.4)104 (40.0)
November1344311 (25.6)7428 (37.8)378 (21.6)
December108239 (39.1)3819 (50.0)167 (43.8)
Total82023749 (20.7)431130 (30.2)18837 (19.7)