From: Correlation among genetic, Euclidean, temporal, and herd ownership distances of porcine reproductive and respiratory syndrome virus strains in Quebec, Canada
Euclidean distance
Ownership
Total
Same
Different
≤5 km
8/50 (16.0%)
7/785 (0.9%)
15/835 (1.8%)
>5 to ≤10 km
8/83 (9.6%)
5/1453 (0.3%)
13/1536 (0.8%)
>10 km
9/174 (5.2%)
20/4853 (0.4%)
29/5010 (0.6%)
25/307 (8.1%)
32/7074 (0.5%)
57/7381 (0.8%)