Molecular Detection and Characterization of the Staphylococcus epidermidis and Staphylococcus haemolyticus Isolated from Hospitalized Patients and Healthcare Workers in Iran

Table 3

Biofilm formation, distribution of SCCmec types, and the prevalence of icaA and icaD genes.

Bacteria	SCCmec types (%)							Ica operon; (%)		Biofilm formation; (%)
	I	II	III	IV	I + III	III + V	NT	icaA	icaD	Positive; (%)	Negative; (%)
HPs	14 (21.1)	2 (3)	2 (3)	7 (10.6)	7 (10.6)	2 (3)	11 (16.7)	28 (62.2)	28 (62.2)	49 (89.1)	6 (10.9)
HCWs	9 (13.6)	2 (3)	0	6 (9.1)	2 (3)	0	2 (3)	12 (57.1)	12 (57.1)	21 (80.8)	5 (19.2)
MRSE	17 (25.8)	1 (1.5)	2 (3)	12 (18.2)	8 (12.1)	2 (3)	10 (15.2)	29 (55.8)	29 (55.8)	46 (88.5)	6 (11.5)
MRSH	6 (9.1)	3 (4.5)	0	1 (1.5)	1 (1.5)	0	3 (4.5)	11 (78.6)	11 (78.6)	12 (85.7)	2 (14.3)
Total	23 (34.8)	4 (6.1)	2 (3)	13 (19.7)	9 (13.6)	2 (3)	13 (19.7)	40 (60.6)	40 (60.6)	70 (86.4)	11 (13.6)

HCWs: healthcare worker; HP: hospitalized patients; MRSE: methicillin-resistant S. epidermidis; MRSH: methicillin-resistant S. haemolyticus; NT: not typeable.