Genetic Characterization of Methicillin Resistant and Sensitive, Vancomycin Intermediate Staphylococcus aureus Strains Isolated from Different Iranian Hospitals

Table 1

Genetic characteristics of VISA isolates.

agr

Sccmec

pvl

hla

etc

ts1t

mecA

vanA

spa type

spa repeat profile

ST

CC

MLST allelic profile

VISA1

I

III

+

+

+

+

+

−

t037

15-12-16-02-25-17-24

ST-1283

8

2-3-1-88-4-4-3

VISA2

I

I

−

+

−

−

+

−

t037

15-12-16-02-25-17-24

ST-585

8

2-1-1-1-4-4-3

VISA3

I

III

−

+

−

−

+

−

t037

15-12-16-02-25-17-24

ST-239

8

2-3-1-1-4-4-3

VISA4

II

−

+

+

−

−

−

−

t008

11-19-12-21-17-34-24-34-22-25

ST-8

8

3-3-1-1-4-4-3

VISA5

II

−

−

−

−

+

−

−

t0189

07-23-12-21-17-34

ST-8

8

3-3-1-1-4-4-3

pvl: Panton-Valentin Leukocidin, sec: Enterotoxin C, tst1: Toxic Shock Syndrome Toxin1, hla: alpha Hemolysin, agr: accessory gene regulator, SCCmec: Staphylococcal Cassette Chromosome, spa: Staphylococcal protein A.