Volume 5, Number 4—August 1999
Dispatch
The Surveillance of Vero Cytotoxin-Producing Escherichia coli O157 in Wales, 1990 to 1998
Table 1
Occurrence and annual incidence of VTEC O157 in Wales, 1990–1998
| Year | Total no. of cases (rate per 100,000 population) | No. of sporadic cases (no. of index cases) | No. of outbreak cases | Outbreak summary (setting, mode of spread, phage and verotoxin types) |
|---|---|---|---|---|
| 1990 | 32 (1.1) | 28 (24) | 4 | Psychogeriatric ward, person to person, PT14, VT1&2. |
| 1991 | 39 (1.3) | 30 (28) | 9 | Day nursery, person to person, PT49, VT2. |
| 1992 | 41 (1.4) | 41 (33) | 0 | - |
| 1993 | 34 (1.2) | 26 (25) | 8 | Community, Meat from 1 shop, PT49, VT2. |
| 1994 | 29 (1.0) | 29 (24) | 0 | - |
| 1995 | 82 (2.8) | 33 (30) | 49 | Day nursery, person to person, PT2 VT2. |
| 1996 | 38 (1.3) | 38 (31) | 0 | - |
| 1997 | 55 (1.9) | 51 (41) | 3 | Home for the elderly mentally infirm, person to person, PT2, VT2. |
| 1 | Part of a European outbreak | |||
| 1998 | 65 (2.2) | 65 (47) | 0 |
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