Table 1. Information about strains with variable numbers of tetranucleotide repeats.

Strain designation	Number of tetranucleotide repeats	Culture Source	Other information
NRS264	4	Blood	Isolated from 8 yo male in France. Associated with multiple abscesses and bacteremia.
USA300-ISMMS1	4	No data
55/2053	4	No data
TW20 [39]	5	Blood	Representative bacteremia isolate from an outbreak of methicillin resistant S. aureus in England
NRS63	5	Blood	Isolated from 50 yo female in Oman. Glycopeptide intermediate resistance.
Bmb9393 [40]	5	Blood	Isolated in Brazil from a bloodstream infection. It was noted that this strain produces ica-independent biofilms[40].
Z172 [41]	5	Blood	Isolated from an elderly ICU patient in Taiwan.
T0131 [42]	6	Blood	Multiresistant. Isolated in China.
JKD6008/JKD6009 [43]	6	Blood / wound infection	Isolated in New Zealand. Vancomycin intermediate. The two isolates were from the same patient, both were sequenced, both contained 6 repeats.