TABLE 4.
Group | No. of pigs from which PRRSV was isolated from BALa specimens/total no. of pigs | No. of pigs from which PRRSV was isolated from serum specimensb at indicated times/total no. of pigs
|
|||
---|---|---|---|---|---|
0 DPI | 7 DPI | 14 DPI | 28 DPI | ||
1 | 0/11 A | 0/11 A | 0/11 A | 0/11 A | 0/11 A |
2 | 8/11 C | 0/11 A | 11/11 B | 4/4 B | 2/4 A, B |
3 | 7/11 C | 0/11 A | 11/11 B | 11/11 B | 1/6 A, B |
4 | 9/11 C | 0/11 A | 10/11 B | 6/7 B | 3/5 B |
5 | 2/11 A, B | 0/11 A | 11/11 B | 9/11 B | 0/10 A |
6 | 4/10 B, C | 0/10 A | 10/10 B | 7/7 B | 3/6 B |
7 | 8/11 C | 0/11 A | 11/11 B | 5/6 B | 0/2 C |
Bronchoalveolar lavage fluid collected at necropsy.
Sera was collected from the remaining live pigs at 0, 7, 14, and 28 DPI.
Within each column, values followed by letters (A, B, C, and D) are significantly different from other values followed by a different letter(s) (P < 0.05).