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Prevalence of Anaplasma phagocytophilum infection, based on PCR test results of blood samples in small mammals from 11 sites in northern California.
| Host | PCR-negative | PCR-positive | Total | Prevalence (%) |
|---|---|---|---|---|
| Ground squirrels | 5 | 0 | 5 | 0 |
| Voles | 2 | 0 | 2 | 0 |
| Woodrats | 30 | 4 | 42 | 11.8 |
| Flying squirrels | 1 | 0 | 1 | 0 |
| Deer mice | 89 | 0 | 89 | 0 |
| Tree squirrels | 8 | 0 | 8 | 0 |
| Shrews | 5 | 0 | 5 | 0 |
| Chipmunks | 61 | 6 | 81 | 8.9 |
| Grand total | 201 | 10 | 233 | 4.7 |
