Table 4.
The strain-specific spirochete loads in the subset of infected I. ricinus ticks are shown for each of the 12 unique combinations of tick age, B. afzelii strain, and competition.
| Tick age | Strain | Competition | Mean | 95% CI |
|---|---|---|---|---|
| Larva | Fin-Jyv-A3 | No | 513 | 241–1,090 |
| Larva | Fin-Jyv-A3 | Yes | 146 | 27–786 |
| Larva | NE4049 | No | 209 | 53–829 |
| Larva | NE4049 | Yes | 338 | 122–934 |
| 1-month-old nymph | Fin-Jyv-A3 | No | 7,111 | 4,873–10,376 |
| 1-month-old nymph | Fin-Jyv-A3 | Yes | 3,352 | 1,972–5,697 |
| 1-month-old nymph | NE4049 | No | 3,493 | 2,394–5,098 |
| 1-month-old nymph | NE4049 | Yes | 1,875 | 1,216–2,892 |
| 4-month-old nymph | Fin-Jyv-A3 | No | 3,951 | 2,738–5,703 |
| 4-month-old nymph | Fin-Jyv-A3 | Yes | 1,410 | 923–2,154 |
| 4-month-old nymph | NE4049 | No | 2,520 | 1,851–3,429 |
| 4-month-old nymph | NE4049 | Yes | 1,960 | 1,350–2,847 |
Mean is the geometric mean of the strain-specific spirochete loads on the original scale. The 95% confidence interval (95% CI) for the geometric mean is also shown.