TABLE 5.
Serologic survey of MVC antibodies in dog populations
| Antibody titera | No. of sera collected at University of:
|
No. of sera from SPF dog colonies | |||
|---|---|---|---|---|---|
| Hokkaido | Tokyo | Azabu | Yamaguchi | ||
| Unknownb | 6 | 3 | 0 | 2 | 6 |
| <10 | 62 | 74 | 4 | 64 | 34 |
| 10 | 4 | 6 | 2 | 0 | 6 |
| 20 | 1 | 7 | 1 | 1 | 1 |
| 40 | 2 | 4 | 1 | 0 | 0 |
| 80 | 1 | 2 | 0 | 1 | 0 |
| 160 | 1 | 0 | 0 | 0 | 0 |
| >160 | 0 | 0 | 0 | 0 | 0 |
| Total no. of samples | 77 | 96 | 8 | 68 | 47 |
| Mean antibody titer | 1:25.2 | 1:21.5 | 1:16.8 | 1:40 | 1:11 |
| Antibody positive rate (%)c | 5.6 (4/71) | 6.5 (6/93) | 12.5 (1/8) | 1.5 (1/66) | 0 (0/41) |
a
Antibody titers were determined by an HI assay using strain HM-6.
b
No titer was obtained by nonspecific agglutination of the serum sample.
c
Titers of 1:40 or more were considered significant.