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Table 3 Diagnostic specificity of TA- and P48-ELISA kits for five uninfected sheep or goat populations

From: Comparative assessment of two commonly used commercial ELISA tests for the serological diagnosis of contagious agalactia of small ruminants caused by Mycoplasma agalactiae

      

TA-ELISA kit

P48-ELISA kit

Animal species

Region

Control program

M. agalactiaeinfection

M.m.capriinfection

Number of animals

Specificity %

95% confidence interval (a)

Specificity %

95% confidence interval (a)

Goat

Poitou-Charentes

Non specific to CA

Very low prevalence

High prevalence

256

98.2

[95.8 99.4]

100

[98.7–100.0]

Goat

Haute-Savoie

Specific to M. agalactiae

Disease-free for the last 10 years

Unknown

1381

99.7

[99.3 99.9]

100

[99.0–100.0]

Goat

Béarn

Specific to M. agalactiae

Disease-free for the last 10 years

Unknown

275

99.3

[97.4 99.9]

100

[98.7–100.0]

Sheep

Béarn

Specific to M. agalactiae

Disease-free for the last 10 years

None (or very low)

604

95.7

[93.8 97.2]

100

[99.4–100.0]

Sheep

Tarn

None

CA never reported

None (or very low)

1195

94.9

[93.5 96.1]

100

[99.7–100.0]

  1. (a) Exact binomial distribution.
  2. M.m.capri = M. mycoides subsp.capri, CA: contagious agalactia.