Table 3.
Blood feeding behavior of West Nile virus susceptible (S), resistant (R), or unexposed (UNEXP) Cx. pipiens following feeding on WNV WT, WNV MP20, or non-infectious bloodmeal
| UNEXP | WT S | WT R | MP20 S | MP20 R | |
|---|---|---|---|---|---|
| overall rate1 |
0.29 |
0.39 |
0.29 |
0.37 |
0.24 |
| wk. 1 rate2 |
0.20 |
0.46a |
0.32 |
0.63a |
0.43 |
| wks. 2–6 rate3 |
0.41 |
0.31 |
0.28 |
0.23 |
0.10b |
| mean wk. rate4 |
0.23 |
0.32 |
0.27 |
0.28 |
0.15 |
| w/o bm5 |
0.58 |
0.41c |
0.42c |
0.61 |
0.58 |
| bm/female6 |
0.66 |
0.87 |
0.77 |
0.59 |
0.41 |
| engorge7 | 2.61 | 2.27 | 2.46 | 2.08 | 2.29 |
1 proportion feeding throughout the study (total fed/total offered).
2 proportion feeding at 7 days post infection.
3 combined proportion feeding in weeks 2–6 of the study.
4 mean weekly feeding rates.
5 proportion of females not taking a bloodmeal throughout the study.
6 mean number of bloodmeals imbibed by individual mosquitoes.
7 mean level of engorgement (1–4).
a significantly higher than unexposed (Chi-squared, p<0.05).
b significantly lower than unexposed (Chi-squared, p<0.05).
c significantly lower than all other groups (Chi-squared, p<0.05).