Table 2.
Chytrid Fungus | Validated Number of Samples Tested | Number Positive | Proportion Infected | Clopper-Pearson 95% Confidence Interval | Probability of detecting at least one positive individual (assuming prevalence = 0.01) |
---|---|---|---|---|---|
Batrachochytrium salamandrivorans | 537 | 0 | 0.0000 | 0.0000–0.0071 | 0.9955 |
Batrachochytrium dendrobatidis | 537 | 7 | 0.0130 | 0.0053–0.0267 | 0.9955 |
This suggests that both Bsal, if present, and Bd are at low prevalence in pet collections in the U.S. Probability of detecting at least one positive individual assuming prevalence was p = 0.01 was calculated with the following equation D = 1-(1-p)n after incorporating our confidence in DNA quality (see Methods).