Table 1.

Occurrence of S. aureus in raw milk samples from the regions of São Carlos and Ribeirão Preto, state of São Paulo, Brazil, collected from February of 2005 to March of 2006.

Origin of milk samples	Number of samples analyzed	Number of samples showing S. aureus (%)	Number of toxigenic S. aureus (%) out of S. aureus isolates
Region of São Carlos:
Individual cow	93	3 (3.2)	0 (0)
Bulk milk	17	2 (11.8)	1 (50.0)
Region of Ribeirão Preto:
Individual cow	115	11 (9.6)	2 (18.2)
Bulk milk	20	2 (10.0)	1 (50.0)
All Regions:
Individual cow	208	14 (6.7)	2 (14.3)
Bulk milk	37	4 (10.8)	2 (50.0)
Total	245	18 (7.3)	4 (22.2)