COVID-19 negative

COVID-19 positive

Threshold

Threshold

0.5

0.5

0.000005

0.999995

0.000003

0.999997

0.000002

0.999998

0.000001

0.999999

Probability

Probability

99.25%

99.25%

95.52%

96.27%

91.42%

93.66%

90.30%

92.16%

89.18%

91.42%