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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

From: The evolution of virulence of West Nile virus in a mosquito vector: implications for arbovirus adaptation and evolution

 

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. 1proportion feeding throughout the study (total fed/total offered).
  2. 2proportion feeding at 7 days post infection.
  3. 3combined proportion feeding in weeks 2–6 of the study.
  4. 4 mean weekly feeding rates.
  5. 5 proportion of females not taking a bloodmeal throughout the study.
  6. 6 mean number of bloodmeals imbibed by individual mosquitoes.
  7. 7 mean level of engorgement (1–4).
  8. a significantly higher than unexposed (Chi-squared, p<0.05).
  9. b significantly lower than unexposed (Chi-squared, p<0.05).
  10. c significantly lower than all other groups (Chi-squared, p<0.05).
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BMC Ecology and Evolution

ISSN: 2730-7182

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