TABLE 3.
Proportions of positive samples observed for each site in the groundwater experimentsa
| Virus | No. of positive samples/total no. of samples (P value) |
|||
|---|---|---|---|---|
| Site 1 (A1) | Site 2 (A1) | Site 3 (A1) | Site 4 (A2) | |
| FRNAPH (all genogroups) | 1/60 (0.231) | 0/60 (1) | 0/60 (1) | 0/60 (1) |
| HAdV | 1/15 (0.070) | 4/15 (1.58 × 10−5) | 0/15 (1) | 2/15 (0.005) |
| FRNAPH (all genogroups) + HAdV | 2/75 (0.074) | 4/75 (0.005) | 0/75 (1) | 2/75 (0.074) |
a
P values corresponding to statistical comparisons with the control (0/200) using the Fisher exact test are given in parentheses. Viral occurrences significantly different from the control are in bold. Note that the values in bold remain significant (P ≤ 0.05) if the Bonferroni correction is applied to the multiple comparisons of the table. A, aquifer, FRNAPH, F-specific RNA phages; HAdV, human adenoviruses.