Table 4

Replication of rDEN1/4(ME) chimeric viruses in Aedes aegypti

Virus1
No. mosquitoes
Body2
Head2
% Dissemination3







% infected
Mean virus titer (log10 PFU/body)
% infected
Mean virus titer (log10 PFU/head)


DEN1
24
88
4.5 ± 0.1
88
4.7 ± 0.1
100
DEN4
24
88
3.0 ± 0.2
71
2.7 ± 0.3
81
rDEN1/4(ME)
24
63
2.4 ± 0.3
42
3.0 ± 0.4
67
rDEN1/4Δ30(ME)
24
0
< 0.4
0
< 0.4
0

1 Assuming a 2 ul bloodmeal, 4.3 log10 PFU virus of each virus were ingested.

2 Presence of virus in mosquito homogenates was determined by plaque assay in Vero cells. Mean virus titer was determined using values only from samples with detectable virus.

3 Calculated as no. infected heads/no. infected bodies.

Blaney et al. Virology Journal 2007 4:23   doi:10.1186/1743-422X-4-23