Table 3.
Transovarial transmission success and spirochete load for Ixodes scapularis females experimentally infected with Borrelia miyamotoi and their offspring. Spirochete load is represented by purB copies.
| Female | Female purB copies | No. larvae tested | % larval infection prevalence | 95% C.I. for % larval infection prevalence | Mean larval purB copy number | |
|---|---|---|---|---|---|---|
| IsF2 3 | 2.09 × 108 | 50 | 96.0 | 86.5 – 98.9 | 11,650 | |
| IsF2 9 | 1.88 × 109 | 100 | 71.0 | 61.5 – 79.0 | 15,891 | |
| IsF2 27 | 1.34 × 108 | 100 | 81.0 | 72.2 – 87.5 | 30,459 | |
| IsF2 29 | 2.09 × 108 | 100 | 65.0 | 55.3 – 73.6 | 21,132 | |
| IsF1 13 | 1.91 × 107 | 15 | 100.0 | 79.6 – 100 | 24,816 | |
| IsF1 14 | 1.79 × 102 | 24 | 0 | 0 – 13.8 | 0 | |
| IsF1 15 | 2.52 × 103 | 25 | 0 | 0 – 13.3 | 0 | |
| IsF1 6 | 6.26 × 102 | 24 | 4.2 | 1.0 – 20.2 | 35 | a |
| IsF1 A | 1.21 × 103 | 22 | 0 | 0 – 14.9 | 0 | b |
| IsF1 B | 6.61 × 102 | 30 | 3.3 | 1.0 – 16.7 | 121 | b |
a
reduced engorgement, many unhatched eggs.
b
minimal engorgement, less than 50 larvae.