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Table 2 Human Bacteroides markers detected by qPCR (n = 2336 total samples)

From: Exposure to human-associated fecal indicators and self-reported illness among swimmers at recreational beaches: a cohort study

Human Marker

Detected in samples N (%)

Nondetect samples N (%)

Missing samples a N (%)

False positive rate b (%)

HumM2

233 (10)

2103 (90)

0

0.00

HF183

646 (28)

1690 (72)

0

0.15

BsteriF1

671 (29)

1665 (71)

0

0.20

BuniF2

972 (42)

1364 (58)

0

0.10

  1. Abbreviations: qPCR, quantitative polymerase chain reaction
  2. a Missing out of the 2336 samples that passed quality control measures
  3. b Proportion of samples that tested positive for the assay but were in fact negative
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