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Table 5 Study the sensitivity and specificity of PCR method for detection of V. cholerae

From: Detection of Escherichia coli, Salmonella species, and Vibrio cholerae in tap water and bottled drinking water in Isfahan, Iran

 

Culture positive

Culture negative

Total

PCR positive

3*a)

0c)

3

PCR Negative

0b)

445**d)

445

Total

3a+b)

445c+d)

448

  1. *Sensitivity = a a + b = 100%.
  2. **Specificity = d c + d = 100%.