Volume 12, Number 3—March 2006
Dispatch
Canine Leptospirosis, United States, 2002–2004
George E. Moore*
, Lynn F. Guptill*, Nita W. Glickman*, Richard J. Caldanaro*, David Aucoin†, and Lawrence T. Glickman*
, Lynn F. Guptill*, Nita W. Glickman*, Richard J. Caldanaro*, David Aucoin†, and Lawrence T. Glickman*Table
Seropositivity for Leptospira serovars in dogs by the microscopic agglutination test using canine sera, 2002–2004*
| Serovar | Total tests (n) | Positive test results |
|||||
|---|---|---|---|---|---|---|---|
| >400 |
>800 |
>1,600 |
|||||
| n | % (95% CL) | n | % (95% CL) | n | % (95% CL) | ||
| Autumnalis | 11,621 | 1,059 | 9.11 (8.60,9.65) | 755 | 6.50 (6.06,6.96) | 549 | 4.72 (4.35,5.13) |
| Grippotyphosa | 22,929 | 1,458 | 6.36 (6.05,6.68) | 1,132 | 4.94 (4.66,5.23) | 908 | 3.96 (3.71,4.22) |
| Bratislava | 11,663 | 499 | 4.28 (3.92,4.66) | 428 | 3.67 (3.34,4.03) | 357 | 3.06 (2.76,3.39) |
| Pomona | 22,937 | 906 | 3.95 (3.70,4.21) | 716 | 3.12 (2.90,3.35) | 575 | 2.51 (2.31,2.72) |
| Canicola | 22,377 | 669 | 2.99 (2.77,3.22) | 317 | 1.42 (1.27, 1.58) | 134 | 0.60 (0.50,0.71) |
| Icterohaemorrhagiae | 22,935 | 356 | 1.55 (1.40,1.72) | 179 | 0.78 (0.67, 0.90) | 79 | 0.34 (0.27,0.43) |
| Hardjo | 22,937 | 40 | 0.17 (0.12,0.24) | 22 | 0.10 (0.06, 0.15) | 10 | 0.04 (0.02,0.08) |
*CL, confidence limit.
