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Summary of source types for the 2,040 environmental E. coli isolates used in this study
| Type | No. of isolates |
|---|---|
| Beach water | 971 |
| Beach sand | 617 |
| Canada Goose (Branta canadensis) dropping | 131 |
| Sewage plant final effluent | 84 |
| Untreated combined sewer overflow | 68 |
| Dog (Canis lupus familiaris) dropping | 65 |
| Cat (Felis catus) dropping | 48 |
| Gull (Larus delawarensis) dropping | 38 |
| Mallard duck (Anas platyrhynchos) dropping | 18 |
