Table 2.

Number of mastitic milk samples from which Staphylococci, Escherichia coli, or Klebsiella spp. were isolated from cows with clinical mastitis (n = 1010) in Chiba Prefecture, Japan, dairy farms.

Bacterial species	Number of isolates	Number of multidrug-resistant isolates
Coagulase-negative staphylococci (CNS)	210	83∗
Staphylococcus aureus	110	0∗
Escherichia coli (E. coli)	65	6∗∗
Klebsiella spp.	13	2∗∗

^∗Number of methicillin-resistant isolates.

^∗∗Number of extended-spectrum beta-lactamase (ESBL)-producing isolates.