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Table 2 Pathology of milk samples 16 h post-infusion

From: Identification of immune genes and proteins involved in the response of bovine mammary tissue to Staphylococcus aureus infection

Cow

Test

Left Fore

Right Fore

Left Hind

Right Hind

#1490

Dose1

PBS

5 × 102

1 × 104

1 × 105

 

Growth2

Minor8

+

+

+

 

Gramstain3

-

+

+

+

 

Hemolysis4

-

partial

partial

+

 

Catalase5

-

+

+

+

 

Coagulase6

-

+

+

+

 

Isolate7

n.d.

S. aureus

S. aureus

S. aureus

#1592

Dose

1 × 104

PBS

1 × 105

1 × 106

 

Growth

+

none

+

+

 

Gramstain

+

-

+

+

 

Hemolysis

partial

-

partial

partial

 

Catalase

+

-

+

+

 

Coagulase

+

-

+

+

 

Isolate

S. aureus

none

S. aureus

S. aureus

#1419

Dose

PBS

Nil

1 × 105

1 × 106

 

Growth

none

+

+

+

 

Gramstain

-

+

+

+

 

Hemolysis

-

partial

partial

partial

 

Catalase

-

+

+

+

 

Coagulase

-

+

+

+

 

Isolate

none

S. aureus

S. aureus

S. aureus

  1. 1 Bacterial dose
  2. 2 Bacterial growth (+/-)
  3. 3 Gram positive or Gram negative
  4. 4 Hemolysis; hemolytic on blood agar (+, partial, -)
  5. 5 Catalase (+/-)
  6. 6Coagulase (+/-)
  7. 7Bacterial species identified
  8. 8 Minor bacterial growth was observed but this was not S. aureus.