Table 2. PCR prevalence of MuAstV in Japanese facilities in cecum sample.
| Hosting facility | Strain | # of Positive | # of Tested | Percentage Positive |
| Breeder A | B6J | 8 | 0% | |
| IQI | 14 | 0% | ||
| mdx | 2 | 0% | ||
| Breeder B | B6J | 8 | 0% | |
| BALB/c | 5 | 0% | ||
| ICR | 12 | 0% | ||
| NOD-scid | 10 | 0% | ||
| Breeder C | ICR | 2 | 0% | |
| NOD-scid | 2 | 0% | ||
| Institute A | BALB/c | 1 | 9 | 11% |
| ICR | 6 | 0% | ||
| Institute B | B6J | 1 | 4 | 25% |
| BALB/c×B6J | 1 | 1 | 100% | |
| Institute C | ICR | 5 | 0% | |
| Institute D | ICR | 1 | 5 | 20% |
| Institute E | ICR | 1 | 5 | 20% |
| Institute F | ICR | 10 | 0% | |
| Institute G | ICR | 5 | 0% | |
| Institute H | B6J | 1 | 0% | |
| ICR | 2 | 7 | 29% | |
| Institute I | B6J | 2 | 0% | |
| BALB/c | 3 | 0% | ||
| Institute J | ICR | 2 | 2 | 100% |
| Institute K | ICR | 1 | 1 | 100% |
| Institute L | ICR | 1 | 0% | |
| Institute M | unknown | 1 | 0% | |
| Pharmaceutical A | ICR | 1 | 2 | 50% |
| Pharmaceutical B | ICR | 2 | 0% | |
| Pharmaceutical C | BALB/c | 3 | 9 | 33% |
| Pharmaceutical E | BALB/c | 1 | 0% | |
| ICR | 5 | 0% | ||
| University A | ICR | 5 | 0% | |
| University B | ICR | 5 | 0% | |
| University C | Bach2 | 1 | 1 | 100% |
| Gfi1/CD4-cre | 1 | 0% | ||
| ICR | 1 | 2 | 50% | |
| Menin | 1 | 0% | ||
| University D | ICR | 1 | 5 | 20% |
| University E | B6J | 3 | 0% | |
| ICR | 3 | 11 | 27% | |
| PKA | 1 | 0% | ||
| University F | ICR | 2 | 7 | 29% |
| unknown | 1 | 0% | ||
| University G | ICR | 2 | 0% | |
| University H | ICR | 4 | 0% | |
| University I | ICR | 4 | 0% | |
| University J | ICR | 4 | 0% | |
| University K | ICR | 2 | 9 | 22% |
| University L | BALB/c | 1 | 2 | 50% |
| University M | unknown | 3 | 10 | 30% |
| University O | BALB/c | 1 | 5 | 20% |
| ICR | 1 | 5 | 20% | |
| University P | ICR | 3 | 0% | |
| University Q | ICR | 6 | 0% | |
| University R | B6J | 2 | 3 | 67% |
| BALB/c | 1 | 1 | 100% | |
| ICR | 4 | 11 | 36% | |
| University S | B6J | 1 | 0% | |
| ICR | 2 | 3 | 67% | |
| University T | B6J | 1 | 0% | |
| ICR | 1 | 1 | 100% | |
| unknown | 1 | 1 | 100% | |
| University U | ICR | 1 | 3 | 33% |
| University V | B6J | 2 | 0% | |
| ICR | 1 | 5 | 20% | |
| University W | B6J | 1 | 0% | |
| University X | B6J | 1 | 1 | 100% |
| B6N | 1 | 0% | ||
| ICR | 5 | 0% | ||
| unknown | 2 | 3 | 67% | |
| University Y | ICR | 1 | 0% | |
| University Z | B6J | 1 | 1 | 100% |
| University AA | B6J | 1 | 0% | |
| BALB/c | 1 | 0% | ||
| C3H | 1 | 1 | 100% | |
| University AB | C3H | 1 | 0% | |
| ICR | 1 | 1 | 100% | |
| University AC | BALB/c | 1 | 1 | 100% |
| University AD | ICR | 2 | 0% | |
| University AE | B6J | 1 | 0% | |
| ICR | 1 | 2 | 50% |