Contents current as of August 2005
Campylobacter database
- 1392 isolates with SmaI profiles of which there are 271 different patterns. The most common SmaI patterns are shown. In contrast, 101 of the patterns are represented by only a single isolate in the database.
- KpnI profiles are present for 321 of the isolates, of which there are 126 different patterns.
- Penner serotyping information was submitted for 1163 of the isolates, of which the six most common serotype groupings accounted for almost 70% of the isolates. The remaining isolates could be divided into 30 different Penner serotypes with between one and 44 isolates in each group.
Salmonella database
- There are currently 265 isolates in the Salmonella database, spread across 18 different serotypes. Almost half are S. Brandenburg, 13% S. Montevideo, and 10% S. Typhimurium.
- The sources of the isolates are: 43% human, 27% environmental, 20% animal and 10% food.
- Almost all notified human Salmonella isolates, and an equal number of non-human isolates are serotyped at the ESR Enteric Reference laboratory. Details of the actual number of isolates (more than 2000 in 2004) and the distribution of human and non-human Salmonella serotypes in New Zealand is available on the ESR surveillance website.
Listeria database
- There are currently 125 isolates submitted to the Listeria database.
- The source of 124 of the isolates is listed as human, and one is a food isolate.
- 124 of the isolates have an AscI PFGE pattern, of which there are 62 different patterns.
- 99 isolates have an ApaI pattern, of which there are 40 different patterns.
- Serotype breakdown of the isolates is: 38 are 4b, 16 are 1/2, 13 are 1/2a, 4 are 1/2b and for 36 isolates, the serotype is unknown.
Shiga-like toxin producing E. coli (STEC) database
- There are currently 283 isolates submitted to the STEC database with XbaI patterns.
- The source of 216 of the isolates is listed as human, 64 are food isolates, 1 is an environmental isolate and the rest are unknown. 112 of the isolates have their serotype listed as O157:H7. Isolation dates range from 1993-2005.
As new isolates are subtyped, comparison using these databases will allow the determination of where and when this subtype has been identified before, whether this is a new subtype, identification of emerging subtypes and assignment of standardised nomenclature.
In addition, the databases will act as a platform for the exchange of data, both within New Zealand and internationally. The databases, and the isolates they represent, will also be a rich resource for future research projects that address transmission routes of these organisms.
Links will open in a new window:
ESR surveillance website