Table 4. Spatial clustering of samples positive for Leptospira at four locations, analyzed in SaTScan using a Bernoulli model.
Analyses included Herpestes auropunctatus, Rattus spp. and Mus musculus collected from cattle farms in Puerto Rico. All positive samples throughout sampling sites were analyzed to determine if more positive samples that expected were detected in any given area using ci-square analyses.
| Site | Radius | Expected | Observed | p | |
|---|---|---|---|---|---|
| Cluster 1 | Lajas | 0.029 | 5.49 | 12 | 0.07 |
| Cluster 2 | Sabana Grande | 0.024 | 1.57 | 4 | 0.95 |
| Cluster 3 | Naguabo | 0.086 | 1.57 | 4 | 0.95 |
| Cluster 4 | San Sebastián | 0.029 | 2.75 | 6 | 0.97 |