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Table 3 Distribution of bacterial species isolated from clinical and subclinical mastitis samples in 2007-2009

From: Udder pathogens and their resistance to antimicrobial agents in dairy cows in Estonia

  Clinical mastitis Subclinical mastitis
Bacteria 2007
(n = 598)
2008
(n = 692)
2009
(n = 726)
2007
(n = 939)
2008
(n = 1063)
2009
(n = 661)
S. aureus 11.7 11.7 11.7 19.2 22.8 16.6
CNS 4.8 7.1 8.5 16.1 13.6 17.4
CPS* 3.8 3.3 1.6 4.6 2.8 5.1
Str. agalactiae 9.0 11.3 14.7 13.6 9.0 10.7
Str. dysgalactiae 8.0 7.8 7.2 3.6 4.0 5.6
Str. uberis 16.1 21.8 17.1 10.2 12.3 12.9
Str. spp 3.2 3.3 1.9 1.2 2.0 2.7
Lactococcus lactis 10.9 3.9 5.7 8.9 8.2 3.9
E. coli 14.4 16.6 16.5 1.6 2.0 3.8
Klebsiella spp. 7.0 1.3 2.3 0.7 0.6 0.9
Enterococcus spp. 1.3 2.3 1.1 1.5 2.8 4.2
Corynebacterium spp. 2.2 2.6 5.0 16.5 17.3 8.5
A. pyogenes 2.2 3.8 3.6 0.1 0.6 0.6
Pseudomonas spp. 1 0.3 0.3 0 0 0.6
Proteus spp. 0.2 0 0.2 0.4 0.1 0.6
Yeast 2.3 2 1.6 1.5 1.6 5.6
Other 1.8 0.9 1 0.3 0.3 0.3
Total 100% 100% 100% 100% 100% 100%
  1. * CPS: coagulase-positive staphylococci (other than S. aureus)
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