Volume 11, Number 5—May 2005
Dispatch
Salmonella Derby Clonal Spread from Pork
Sylvia Valdezate*
, Ana Vidal†, Silvia Herrera-León*, Javier Pozo†, Pedro Rubio†, Miguel A. Usera*, Ana Carvajal†, and M. Aurora Echeita*
, Ana Vidal†, Silvia Herrera-León*, Javier Pozo†, Pedro Rubio†, Miguel A. Usera*, Ana Carvajal†, and M. Aurora Echeita*
Table 1
Characteristics of Salmonella enterica Derby serotype isolates (N = 47) from the LNRSSE Group (Spanish National Reference Laboratory for Salmonella and Shigella)*
| Specimen |
Isolation date |
Geographic origin |
PFGE profile |
Resistance profile |
GyrA mutation† |
|---|---|---|---|---|---|
| Human origin (16 strains) | |||||
| 1 | 9/4/01 | Barcelona | 19 | ||
| 2 | 3/5/02 | Lugo | 4 | T | |
| 3 | 4/25/02 | Madrid | 3 | S,Su | |
| 4 | 4/25/02 | Unknown | NT | A,S,Su,T,C,Nx | Tyr 83 (>256/0.12) |
| 5 | 5/23/02 | Orense | 10 | A,S,Su,T,C | |
| 6 | 7/27/02 | Castellón | 17 | ||
| 7 | 7/27/02 | Barcelona | 11 | A,S,G,To,Ap,Su,T,SxT | |
| 8 | 7/8/02 | Zaragoza | 11 | ||
| 9 | 8/8/02 | Barcelona | 1 | Su,T,SxT | |
| 10 | 8/20/02 | Tarragona | 23 | ||
| 11 | 8/22/02 | Alicante | 16 | S,T,Nx | Asn 87 (64/0.09) |
| 12 | 7/8/02 | Oviedo | 1 | S,Su,T | |
| 13 | 9/1/02 | Zamora | 1 | S,Su,T | |
| 14 | 9/30/02 | Huesca | 16 | T | |
| 15 | 11/28/02 | Ciudad Real | 23 | S,Su,T | |
| 16 | 11/5/02 | Caceres | 5 | A,T | |
| Food origin (23 strains) | |||||
| Unknown | 3/22/02 | Barcelona | 18 | S,Su,T,SxT | |
| Seafood | 5/1/00 | Salamanca | 14 | A,Su,T,SxT | |
| Sausage | 5/2/00 | Bilbao | 1 | Su,T | |
| Pork | 6/11/00 | Cádiz | 7 | T | |
| Pork | 6/16/00 | Granada | 23 | Nx | Phe 83 (>256/0.09) |
| Pork | 7/10/00 | Zaragoza | 1 | S,Su,T | |
| Sausage | 6/16/00 | Navarra | 1 | S,Su,T | |
| Lamb | 1/10/01 | Málaga | 1 | A,T | |
| Minced meat | 4/2/01 | Toledo | 12 | S,T | |
| Unknown | 7/4/01 | Valencia | 12 | S,T | |
| Sausage | 7/2/01 | Granada | 1 | S,Su,T | |
| Minced meat | 10/5/00 | Toledo | 13 | T | |
| Unknown | 7/18/00 | Vitoria | NT | A | |
| Corn | 12/31/01 | Bilbao | NT | ||
| Hamburger | 4/16/02 | Córdoba | 1 | Nx | Phe 83 (>256/0.1) |
| Pork | 4/19/02 | Jaén | 1 | S,Su,T | |
| Sausage | 5/28/02 | Soria | 1 | S,Su,T | |
| Pork | 6/14/02 | Oviedo | 1 | S,Su,T | |
| Pork | 6/19/02 | Oviedo | 1 | S,Su,T | |
| Pork | 9/10/02 | Madrid | 1 | T | |
| Unknown | 9/26/02 | Burgos | 1 | Su,T,SxT | |
| Sausage | 10/29/02 | Barcelona | 24 | T | |
| Pork | 9/1/02 | Lugo | 20 | T | |
| Environmental origin (2 strains) | |||||
| Groundwater | 9/3/01 | Valencia | 12 | S,T | |
| Beach | 2/29/02 | Bilbao | 1 | Su,T,SxT | |
| Ill animal origin (6 strains) | |||||
| – | – | Soria | 14 | A,T | |
| Swine | 5/22/02 | Toledo | 1 | S,SuT | |
| Swine | 3/7/02 | León | 6 | S,T | |
| Swine | 3/7/02 | León | 6 | S,T | |
| Swine | 3/6/02 | León | 6 | S,T | |
| Swine | 1/22/02 | León | 9 | Su,T,SxT | |
*PFGE, pulsed-field gel electrophoresis; Nx, nalidixic acid; Cp, ciprofloxacin; T, tetracycline; S, streptomycin; Su, sulfamethoxazole; NT, not typeable; A, ampicillin; C, chloramphenicol; G, gentamicin; To, tobramycin; Ap, apramycin; SxT, cotrimoxazole.
†MIC for Nx/Cp, μg/mL.
Page created: April 24, 2012
Page updated: April 24, 2012
Page reviewed: April 24, 2012
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.