Superior infectivity for mosquito vectors contributes to competitive displacement among strains of dengue virus

BMC Ecology

Table 1 Susceptibility of Aedes aegypti from the NIH and Galveston colony to dengue virus serotypes 1, 3 and 4.

Virus	Colony	No. fed	No. (%) infected²	Titer in body of infected mosquitoes [log₁₀pfu/body] ± 1 SE³	No. (%) disseminated²	Titer in head of disseminated infections [log₁₀pfu/body] ± 1 SE³
rDEN1	NIH	27	4 (15)	3.2 ± 0.5	4 (15)	3.7 ± 0.3
	GAL¹	30	9 (30)	3.5 ± 0.3	9 (30)	3.4 ± 0.3
rDEN3	NIH	21	10 (48)	3.3 ± 0.2	9 (43)	3.2 ± 0.4
	GAL	11	5 (46)	3.6 ± 0.2	4 (36)	3.1 ± 0.2
rDEN4	NIH	11	10 (90)	4.3 ± 0.2	8 (73)	3.6 ± 0.3
	GAL	12	8 (83)	3.9 ± 0.2	4 (33)	3.8 ± 0.4

1. Galveston colony
2. Pairwise comparisons between the NIH and Galveston colony mosquitoes for each of the three serotypes for both percent infection and percent dissemination detected no significant differences (Fisher's exact test, P > 0.1 for all six comparisons).
3. Pairwise comparisons of the titer of each virus in the body and head of the NIH and Galveston colony mosquitoes also revealed no significant differences between the colonies (Student's t-test, P > 0.08 for all comparisons).

ISSN: 1472-6785