Table 4 SCCmec types of 53 MRSA isolates causing bloodstream infections from 2013 to 2018.

From: Antimicrobial Resistance and Molecular Epidemiology of Staphylococcus aureus Causing Bloodstream Infections at Ruijin Hospital in Shanghai from 2013 to 2018

SCCmec type(n)

ST(n)

spa type(n)

virulence factors(n)

I (2)

ST398 (1)

t034 (1)

None

 

ST1801 (1)

t037 (1)

sea(1)

II (39)

ST5 (24)

t1818 (1),t2460 (9),t264 (2),t311 (3),t450 (1),t458 (1),t601 (1), t9353 (2),t9363 (4)

tst(21),sea(4),seb(1),sec(21),seg(24),seh(15),sei(22)

 

ST764 (8)

t002 (8)

tst(3),seb(2),sec(3),seg(8),seh(8),sei(8)

 

ST1801 (4)

t030 (1),t037 (2),t421 (1)

sea(4),seh(2)

 

ST3066 (2)

t5076 (2)

tst(2),sec(2),seg(2),sei(2)

 

ST59 (1)

t437 (1)

sea(1)

IV (4)

ST764 (2)

t002 (2)

tst(2),sec(2),seg(2),seh(2),sei(2)

 

ST5 (1)

t2460 (1)

tst(1),sec(1),seg(1),sei(1)

 

ST59 (1)

t437 (1)

seb(1),seh(1)

V (8)

ST398 (3)

t034 (3)

seh(1)

 

ST217 (2)

t309 (2)

pvl(1),seg(1),sei(2)

 

ST630 (1)

t2196 (1)

None

 

ST1801 (1)

t459 (1)

sea(1)

 

ST1821 (1)

t4549 (1)

None

  1. SCCmec, Staphylococcal cassette chromosome mec; ST, sequence type by multi-locus sequence typing; spa, Staphylococcus protein A gene;
  2. None, no virulence gene detected.