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Duration of HGE agent-infected nymphal tick attachment required for transmission of the HGE agent to uninfected mice
| Duration of attachment (h) | Prevalence of tick infectiona | Indices of mouse
infection
|
||
|---|---|---|---|---|
| % Morulae | Presence of splenomegaly | PCR result | ||
| 16 | 2/10 | 0 | − | − |
| 24 | 6/12 | 0 | − | − |
| 40 | 3/11 | 0 | − | − |
| 48 | 6/12 | 2.5 | + | + |
| 72 | 6/10 | 5.0 | + | + |
| 96 | 6/10 | 7.5 | + | + |
Number of PCR-positive ticks/number of ticks tested.
