Table 2. Frequency of Detectable Viral DNA in Different Organs after Groups of 4 mice were Infected by the Nasal or Intragastric Route.
| Infectious routea | 3dpib | 7 dpi | 10 dpi | 14 dpi | 21 dpi | 28 dpi | |
|---|---|---|---|---|---|---|---|
| Kidney | Nasal/intragastric | 0/0 | 2/0 | 3/0 | 2/0 | 1/1 | 0/0 |
| Lung | Nasal/intragastric | 4/4 | 3/2 | 4/2 | 4/1 | 4/4 | 4/1 |
| Heart | Nasal/intragastric | 0/0 | 0/0 | 2/0 | 1/0 | 1/0 | 1/0 |
| Aorta | Nasal/intragastric | 3/0 | 3/0 | 4/0 | 4/0 | 1/2 | 2/0 |
| Stool | Nasal/intragastric | 4/0 | 4/0 | 4/0 | 4/0 | 1/0 | 1/0 |
| Colon | Nasal/intragastric | 0/0 | 2/0 | 1/0 | 1/0 | 2/0 | 2/0 |
| Spleen | Nasal/intragastric | 0/0 | 3/0 | 4/0 | 4/1 | 4/2 | 4/0 |
| Urine | Nasal/intragastric | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| Serum | Nasal/intragastric | 0/0 | 2/0 | 0/2 | 0/0 | 0/0 | 0/0 |
a Groups of 4 mice were infected at each time point using the nasal or, intragastric route. The actual number of animals that tested positive in these two categories is indicated.
b dpi, days post infection