Table 2 Frequency of coagulase-negative staphylococci species isolated from milk sample with subclinical mastitis

CNS species	Value or description in study
	Sawant et al.(2009)	Nam et al.(2008)	Sampimon et al. (2009)	Waller et al.(2011)	Piessens et al.(2011)
Stuudy design parameters
Country	USA	Korea	Netherland	Sweden	Belgium
No. of isolates	168 (100)	169 (100)	155 (100)	98 (100)	134 (100)
Identification metods	PFGE anaysis	API Staph	API Staph	tuf gene PCR	RAPD fingerprints
Identified Staphylococci (%)
S. chromogenes	61 (36)		47 (30.3)	30 (31)	41 (30.6)
S. epidermidis	37 (22)	2 (0.9)	20 (12.9)	21 (21)	16 (11.9)
S. auricularis		66 (39.9)	2 (1.3)		3 (2.2)
S. capitis			17 (11)
S. simulans	16 (10)	31 (18.8)	17 (11)	13 (13)	15 (11.2)
S. warneri	7 (4)	7 (4.1)	12 (7.7)	2 (2)	3 (2.2)
S. xylosus	1(1)	14 (8.2)	7 (4.5)	4 (4)
S. haemolyticus	2(1)	21(12.4)	6 (3.9)	14 (14)	37 (27.6)
S. hominis	4 (2)	12 (7.1)	1 (0.7)		5 (3.7)
(S. hyicus)a	37 (22)		3 (1.9)	1
(S. intermedius)a	2 (1)		4 (2.6)
S. cohnii			2 (1.3)		4 (3.0)
S. sciuri	1(1)	13 (7.6%)	3 (1.9)
S. saprohyticus		3 (1.7)	1 (0.7)	7 (7)	4 (3.0)
Others			13 (8.4)	6 (6)	6 (4.5)

^a If part of the study, percentages of coagulase-positive or coagulase-variable species (species names in parentheses) are also given.