Table 2. Zika virus vector competence of Aedes aegypti and Ae. albopictus mosquitoes at 21 days after infection* .
| Mosquito species | Zika virus |
|
Mosquitoes |
|||
|---|---|---|---|---|---|---|
| Strain | Dose, log10 PFU/mL | Infected, % (no. tested) | Infected and disseminating, % | % Infected and transmitting | ||
| Ae. aegypti | HND | 8.9 | 90.9 (22) | 95.0 | 80.0†↑ | |
| 7.7 | 46.7 (30)†↓ | 85.7 | 78.0†↑ | |||
| 6.6 | 16.7 (30) | 40.0 | 40.0 | |||
|
|
|
4.6 |
|
3.3 (30) |
0 |
0 |
| Ae. aegypti | CAM | 8.7 | 80.0 (30) | 100.0 | 75.0 | |
| 7.2 | 44.4 (26) | 91.7†↑ | 75.0†↑ | |||
| 5.6 | 10.0 (30) | 66.7 | 33.3 | |||
|
|
|
4.3 |
|
7.0 (30) |
100 |
50.0 |
| Ae. albopictus | HND | 8.9 | 100.0 (30) | 93.3 | 33.3S↓ | |
| 7.5 | 93.3 (30)†↑‡↑ | 75.0‡↑ | 21.4†↓ | |||
| 5.9 | 33.3 (30) | 40.0 | 10.0 | |||
|
|
|
4.1 |
|
10.0 (30) |
66.7 |
0 |
| Ae. albopictus | CAM | 8.6 | 95.2 (21) | 95.0 | 55.0 | |
| 6.6 | 40.0 (30)‡↓ | 25.0†↓‡↓ | 25.0†↓ | |||
| 5.3 | 23.3 (30) | 85.7 | 14.3 | |||
| 4.2 | 6.0 (16) | 0 | 0 | |||
*Up and down arrows indicate value is significantly above or below the comparison value (p<0.05 by Fisher exact test). †Significant differences between different species at the same dose of the same virus strain. ‡Differences between viral strains at the same dose, within species.