Volume 18, Number 7—July 2012
Dispatch
Potential International Spread of Multidrug-Resistant Invasive Salmonella enterica Serovar Enteritidis
Table 2
Isolate no. | Phage type | Resistance phenotype/ genotype | Class 1 integron† | pSEV genes‡ | MLVA | MLST | VR plasmid, kb |
---|---|---|---|---|---|---|---|
CNM4839/03 | PT 14b | AMP, CHL, STR, SUL, TET, TMP/blaTEM-1, catA2, strA-strB, sul1, sul2, tet(A), dfrA7 | 700 bp/dfrA7 | spvA, spvB, spvC, spvR, rsk, rck, mig-5, srgB, srgC, pefA, pefB, pefC, pefD | 2-12-9-4-4-3-NA-8-8 | ST11 | 100 |
H051860415 | PT 42 | AMP, CHL, STR, SUL, TET, TMP/blaTEM-1, catA2, strA-strB, sul1, sul2, tet(A), dfrA7 | 700 bp/dfrA7 | spvA, spvB, spvC, spvR, rsk, rck, mig-5, srgB, srgC, pefA, pefB, pefC, pefD | 2-13-9-4-4-3-NA-8-8 | ST1479 | 95 |
H070360201 | PT 42 | AMP, CHL, STR, SUL, TET, TMP/blaTEM-1, catA2, strA-strB, sul1, sul2, tet(A), dfrA7 | 700 bp/dfrA7 | spvA, spvB, spvC, spvR, rsk, rck, mig-5, ΔsrgA, srgB, srgC, pefA, pefB | 2-15-9-4-4-3-NA-8-8 | ST1479 | 88 |
H070420137 | PT 42 | AMP, CHL, STR, SUL, TET, TMP/blaTEM-1, catA2, strA-strB, sul1, sul2, tet(A), dfrA7 | 700 bp/dfrA7 | spvA, spvB, spvC, spvR, rsk, rck, mig-5, ΔsrgA, srgB, srgC, pefA, pefB | 2-15-9-4-4-3-NA-8-8 | ND | 88 |
H073180204 | PT 42 | AMP, CHL, STR, SUL, TET, TMP/blaTEM-1, catA2, strA-strB, sul1, sul2, tet(A), dfrA7 | 700 bp/dfrA7 | spvA, spvB, spvC, spvR, rsk, rck, mig-5, srgB, srgC, pefA, pefB, pefC, pefD | 2-13-9-4-4-3-NA-8-8 | ND | 92 |
H091340084 | PT 42 | AMP, CHL, STR, SUL, TET, TMP/blaTEM-1, catA2, strA-strB, sul1, sul2, tet(A), dfrA7 | 700 bp/dfrA7 | spvA, spvB, spvC, spvR, rsk, rck, mig-5, ΔsrgA, srgB, srgC, pefA, pefB, pefC, pefD | 2-9-9-4-4-3-NA-8-8 | ST11 | 90 |
H091800482 | PT 42 | AMP, CHL, STR, SUL, TET, TMP/blaTEM-1, catA2, strA-strB, sul1, sul2, tet(A), dfrA7 | 700 bp/dfrA7 | spvA, spvB, spvC, spvR, rsk, rck, mig-5, srgB, srgC, pefA, pefB, pefC, pefD | 2-13-9-4-4-3-NA-8-8 | ND | 92 |
H095100307 | PT 42 | AMP, CHL, STR, SUL, TET, TMP/blaTEM-1, catA2, strA-strB, sul1, sul2, tet(A), dfrA7 | 700 bp/dfrA7 | spvA, spvB, spvC, spvR, rsk, rck, mig-5, ΔsrgA, srgB, srgC, pefA, pefB, pefC, pefD | 2-13-9-4-4-3-NA-8-8 | ND | 95 |
H100240198 | PT 42 | AMP, CHL, STR, SUL, TET, TMP/blaTEM-1, catA2, strA-strB, sul1, sul2, tet(A), dfrA7 | 700 bp/dfrA7 | spvA, spvB, spvC, spvR, rsk, rck, mig-5, ΔsrgA, srgB, srgC, pefA, pefB, pefC, pefD | 2-13-9-4-4-3-NA-8-8 | ND | 95 |
H101700366 | PT 42 | AMP, CHL, STR, SUL, TET, TMP/blaTEM-1, catA2, strA-strB, sul1, sul2, tet(A), dfrA7 | 700 bp/dfrA7 | spvA, spvB, spvC, spvR, rsk, rck, mig-5, ΔsrgA, srgB, srgC, pefA, pefB, pefC, pefD | 2-13-9-4-4-3-NA-8-8 | ND | 95 |
*pSEV, serovar-specific V plasmid of S.enterica serovar Enteritidis; MLVA, multilocus variable number tandem repeat analysis; MLST, multilocus sequence typing; VR, virulence-resistance; PT, phage type; NA, no amplification from this locus; AMP, ampicillin; CHL, chloramphenicol; STR streptomycin; SUL, sulfonamides; TET, tetracycline; TMP, trimethoprim; ST, sequence type; ND, not done.
†Size of the variable region amplified with the 5′CS and 3′CS primers (2).
‡All plasmids were positive for IncFIIA, IncFIB and the par locus. Two new primer pairs were devised for detection of srgA: srgAB-Fw1/Rv1 (5′-CGCCTTCCGTGTATGTCC/GCGAGTCACTCACCGACAG-3′) and srgAB-Fw2/Rv2 (5′-GTTGCACAGGAGTGGGAGTC/GTCCGGGTTCCATGTCAG-3′). The forward primers anneal at different positions within srgA; the reverse primers anneal at different positions within srgB.
References
- Graham SM. Nontyphoidal salmonellosis in Africa. Curr Opin Infect Dis. 2010;23:409–14. DOIPubMedGoogle Scholar
- Rodríguez I, Rodicio MR, Herrera-León S, Echeita A, Mendoza MC. Class 1 integrons in multidrug-resistant non-typhoidal Salmonella enterica isolated in Spain between 2002 and 2004. Int J Antimicrob Agents. 2008;32:158–64. DOIPubMedGoogle Scholar
- Chu C, Chiu CH. Evolution of the virulence plasmids of non-typhoid Salmonella and its association with antimicrobial resistance. Microbes Infect. 2006;8:1931–6. DOIPubMedGoogle Scholar
- Rodicio MR, Herrero A, Rodríguez I, García P, Montero I, Beutlich J, Acquisition of antimicrobial resistance determinants by virulence plasmids specific for nontyphoid serovars of Salmonella enterica. Rev Med Microbiol. 2011;22:55–65. DOIGoogle Scholar
- Rodríguez I, Guerra B, Mendoza MC, Rodicio MR. pUO-SeVR1 is an emergent virulence-resistance complex plasmid of Salmonella enterica serovar Enteritidis. J Antimicrob Chemother. 2011;66:218–20. DOIPubMedGoogle Scholar
- Fierer J. Extraintestinal Salmonella infections: the significance of the spv genes. Clin Infect Dis. 2001;32:519–20. DOIPubMedGoogle Scholar
- Kado CI, Liu S-T. Rapid procedure for detection and isolation of large and small plasmids. J Bacteriol. 1981;145:1365–73.PubMedGoogle Scholar
- Carattoli A, Bertini A, Villa L, Falbo V, Hopkins KL, Threlfall EJ. Identification of plasmids by PCR-based replicon typing. J Microbiol Methods. 2005;63:219–28. DOIPubMedGoogle Scholar
- Ward LR, de Sa JD, Rowe B. A phage-typing scheme for Salmonella enteritidis. Epidemiol Infect. 1987;99:291–4. DOIPubMedGoogle Scholar
- Malorny B, Junker E, Helmuth R. Multi-locus variable-number tandem repeat analysis for outbreak studies of Salmonella enterica serotype Enteritidis. BMC Microbiol. 2008;8:84. DOIPubMedGoogle Scholar
- Vaagland H, Blomberg B, Krüger C, Naman N, Jureen R, Langeland N. Nosocomial outbreak of neonatal Salmonella enterica serotype Enteritidis meningitis in a rural hospital in northern Tanzania. BMC Infect Dis. 2004;4:35. DOIPubMedGoogle Scholar
- Kariuki S, Revathi G, Kariuki N, Kiiru J, Mwituria J, Hart CA. Characterisation of community acquired non-typhoidal Salmonella from bacteremia and diarrhoeal infections in children admitted to hospital in Nairobi, Kenya. BMC Microbiol. 2006;6:101. DOIPubMedGoogle Scholar
- Akinyemi KO, Philipp W, Beyer W, Böhm R. Application of phage typing and pulsed-field gel electrophoresis to analyse Salmonella enterica isolates from a suspected outbreak in Lagos, Nigeria. J Infect Dev Ctries. 2010;4:828–33. DOIPubMedGoogle Scholar
- Krauland MG, Marsh JW, Paterson DL, Harrison LH. Integron-mediated multidrug resistance in a global collection of nontyphoidal Salmonella enterica isolates. Emerg Infect Dis. 2009;15:388–96. DOIPubMedGoogle Scholar
- Kingsley RA, Msefula CL, Thomson NR, Kariuki S, Holt KE, Gordon MA, Epidemic multiple drug resistant Salmonella Typhimurium causing invasive disease in sub-Saharan Africa have a distinct genotype. Genome Res. 2009;19:2279–87. DOIPubMedGoogle Scholar