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Distribution of water samples testing positive for the Influenza A matrix gene across 19 locations in the Lower Peninsula of Michigan, USA.
| Site Code |
n |
Positive (no.) |
Positive (%) |
| AL | 18 | 0 | 0 |
| BC | 6 | 0 | 0 |
| CI | 14 | 0 | 0 |
| DM | 2 | 0 | 0 |
| ET | 3 | 0 | 0 |
| FP | 14 | 0 | 0 |
| GL | 4 | 0 | 0 |
| HO | 13 | 0 | 0 |
| IC | 11 | 0 | 0 |
| KB | 14 | 1 | 7 |
| MC | 13 | 2 | 15 |
| MS | 20 | 0 | 0 |
| PM | 22 | 0 | 0 |
| SH | 17 | 2 | 12 |
| SC | 17 | 1 | 6 |
| TP | 5 | 3 | 60 |
| TU | 1 | 0 | 0 |
| VM | 2 | 0 | 0 |
| WA | 14 | 1 | 7 |
| Total | 210 | 10 | 5 |
