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Table 7 Sensitivity and specificity of the conventional phenotypic methods and of the automated VITEK® 2 system in the identification of microorganisms

From: Comparison of methods for the identification of microorganisms isolated from blood cultures

Microorganism

VITEK® 2 system

Phenotypic methods

Sensitivity (%)

Specificity (%)

Sensitivity (%)

Specificity (%)

Enterococcus faecalis

87.5

100

100

100

Staphylococcus capitis

94.4

99.5

100

100

Staphylococcus cohnii

100

99.0

100

100

Staphylococcus epidermidis

87.6

100

100

98.5

Staphylococcus haemolyticus

98.0

96.5

96.0

100

Staphylococcus hominis

91.4

98.3

94.2

100

Staphylococcus warneri

100

99.5

100

99.0