Table 2. Prevalence of crAssphage in stool samples from norovirus outbreaks on cruise ships and in long-term care facilities and healthy controls without acute gastroenteritis.
| Setting (no. samples) | Age, y, (range) | % CrAssphage (no. positive/no. tested) | crAssphage titer (range)* |
|---|---|---|---|
| Cruise ship voyages† (5) | 65.5 (29–88) | 76.7% (23/30) | 4.5 (3.2–8.9) |
| Long-term care facilities‡ (12) | 63.5 (18–87) | 63.3% (19/30) | 5.4 (2.8–8.9) |
| Adults without acute gastroenteritis (96) | 59.0 (28–83) | 48% (46/96) | 8.1 (3.1–10.3) |
| Children without acute gastroenteritis (77) | 1.1 (0.2–5.0) | 68.8% (53/77) | 8.4 (4.1–10.1) |
*log10 genomic copies per gram of stool sample. †This study. ‡Park et al. (26).