Table 4 Number of childcare facility EHEC outbreak-related cases by serogroups and stx types, 2010–2013, Japan. All outbreaks listed below in the table refer to childcare facility-related outbreaks
From: Enterohemorrhagic Escherichia coli outbreaks related to childcare facilities in Japan, 2010–2013
Serogroup | stx type | Total | 2010–2011 | 2012–2013 | Ratio of 2012–2013 values to 2010–2011 values | ||||
|---|---|---|---|---|---|---|---|---|---|
Case | Outbreak | Case | Outbreak | Case | Outbreak | Case | Outbreak | ||
O157 | stx1 | 11 | 1 | 11 | 1 | 0 | 0 | 0 | 0 |
stx2 or stx1/2 | 158 | 21 | 58 | 9 | 100 | 12 | 1.7 | 1.3 | |
Total | 169 | 22 | 69 | 10 | 100 | 12 | 1.4 | 1.4 | |
O26 | stx1 | 478 | 26 | 86 | 7 | 392 | 19 | 4.6 | 2.7 |
stx2 or stx1/2 | 70 | 3 | 45 | 2 | 25 | 1 | 0.6 | 0.5 | |
Total | 548 | 29 | 131 | 9 | 417 | 20 | 3.2 | 2.2 | |
O111 | stx1 | 44 | 3 | 0 | 0 | 44 | 3 | - | - |
stx2 or stx1/2 | 129 | 3 | 0 | 0 | 129 | 3 | - | - | |
Total | 173 | 6 | 0 | 0 | 173 | 6 | - | - | |
O103, O121 or O145 a | stx1 | 48 | 5 | 11 | 1 | 37 | 4 | 3.4 | 4 |
stx2 or stx1/2 | 34 | 4 | 7 | 1 | 27 | 3 | 3.9 | 3 | |
Total | 82 | 9 | 18 | 2 | 64 | 7 | 3.6 | 3.5 | |
Total | stx1 | 581 | 35 | 108 | 9 | 473 | 26 | 4.4 | 2.9 |
stx2 or stx1/2 | 391 | 31 | 110 | 12 | 281 | 10 | 2.6 | 0.8 | |
Total | 972 | 66 | 218 | 21 | 754 | 45 | 3.5 | 2.1 | |