TABLE 2.

Distributions of blue colonies on ORSA plates at 48 h of incubation (primary cultures and subcultures) by species and sampling site (one morphotype per analysis)

Sample(s)No. (%) of specimensa
TotalBlue coloniesMRSAMSSACoag. neg. staphylococciEnterococcus sp.Others
Nose, throat, and perineal swabs5701691341271411
Nose swab16652411640
Throat swab16669581442
Perincal swab165603801840
Wound swab12638312410
Urine19217100511
Other42951210
Total1,427414 (100)196 (47.3)9 (2.1)166 (40.1)29 (7.0)14 (3.4)
  • a MSSA, methicillin-susceptible S. aureus; Coag. neg., coagulase negative.