Vector competence of the Aedes aegypti population from Santiago Island, Cape Verde, to different serotypes of dengue virus

Table 1 Midgut infection rate, dissemination rate and vector competence estimated by RT-PCR using NS5 gene for the Aedes aegypti population from Santiago Island, Cape Verde

Serotype	Virus titer (FFU/mL)		Midgut infection rate (%) ^a						Dissemination rate (%) ^b						Vectorial competence (%) ^c
	1st exp.	2nd exp.	1st exp.			2nd exp.			1st exp.			2nd exp.			1st exp.			2nd exp.
	1st exp.	2nd exp.	7 dpi	14 dpi	21 dpi	7 dpi	14 dpi	21 dpi	7 dpi	14 dpi	21 dpi	7 dpi	14 dpi	21 dpi	7 dpi	14 dpi	21 dpi	7 dpi	14 dpi	21 dpi
DENV-1	5.0 × 10⁴	2 × 10⁵	0.0	0.0	13.3	0.0	0.0	26.7	-	-	100	-	-	25	0.0	0.0	0.0	0.0	0.0	0.0
DENV-2	1.4 × 10⁵	2 × 10⁵	50.0	75.0	75.0	70.0	85.0	60.0	20.0	73.3	93.3	28.6	76.5	91.7	5.0	55.0	65.0	5.0	65.0	35.0
DENV-3	1.0 × 10⁶	2 × 10⁶	10.0	65.0	70.0	15.0	65.0	80.0	50.0	76.9	121.4	66.7	76.9	87.5	5.0	50.0	75.0	0.0	45.0	55.0
DENV-4	1.0 × 10⁶	2 × 10⁶	0.0	0.0	9.0	0.0	0.0	0.0	-	-	0.0	-	-	-	0.0	0.0	0.0	0.0	0.0	0.0

Notes: ^aMidgut infection rate corresponds to the number of mosquitoes with infected midgut divided by the total number of mosquitoes exposed to the virus. ^bDissemination rate corresponds to the number of mosquitoes with infected head divided by the total number of mosquitoes with infected midgut. ^cThe vector competence or salivary glands infection rate corresponds to the number of mosquitoes with infected salivary gland divided by the total number of mosquitoes exposed.

ISSN: 1756-3305