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Table 1 Characteristics of MRSA isolates selected for rpoB genotyping

From: Genetic basis of rifampicin resistance in methicillin-resistant Staphylococcus aureus suggests clonal expansion in hospitals in Cape Town, South Africa

Clonal type1 (isolate name)

PFGE cluster2 (n)

spa type

Rifampicin phenotype3

Geographical origin

Hospital4 (n)/Year of isolation

Reference

ST612-MRSA-IV

D (2)

t064

Resistant

Cape Town, RSA5

GSH (1), RCCH (1)/2008

[5]

ST612-MRSA-IV

E (1)

t064

Resistant

Cape Town, RSA

UCTPH/2008

[5]

ST612-MRSA-IV

E (4)

t1443

Resistant

Cape Town, RSA

GSH (2), RCCH (1), VH (1)/2008

[5]

ST612-MRSA-IV

Sporadic isolate (1)

t1443

Resistant

Cape Town, RSA

GSH/2008

[5]

ST612-MRSA-IV

Sporadic isolate (1)

t1257

Resistant

Cape Town, RSA

RCCH/2008

[5]

ST5-MRSA-I

C (1)

t045

Resistant

Cape Town, RSA

MMH/2008

[5]

ST22-MRSA-IV

Sporadic isolate (1)

t032

Susceptible

Cape Town, RSA

GSH/2008

[5]

ST36-MRSA-II

F (1)

t021

Susceptible

Cape Town, RSA

GSH/2007

[5]

ST612-MRSA-IV (N83, N84)

ND6 (2)

t064

Resistant

RSA

Unknown/2004 - 2005

[8]

ST612-MRSA-IV (04-17052)

ND (1)

t064

Resistant

Perth, Australia

Unknown/2004

[9]

ST612-MRSA-IV (09-15534)

ND (1)

t7571

Resistant

Perth, Australia

Unknown/2009

[9]

  1. 1 Clonal types are indicated using the current international nomenclature (sequence type (ST) -antimicrobial phenotype - staphylococcal cassette chromosome mec (SCCmec) type)
  2. 2 PFGE, pulsed-field gel electrophoresis
  3. 3 As determined by disc diffusion or on the VITEK 2
  4. 4 GSH, Groote Schuur Hospital; RCCH, Red Cross War Memorial Children's Hospital; UCTPH, University of Cape Town Private Academic Hospital; VH, Victoria Hospital; MMH, Mowbray Maternity Hospital
  5. 5 RSA, Republic of South Africa
  6. 6 ND, not determined