Assessing the role of two populations of Aedes japonicus japonicus for Zika virus transmission under a constant and a fluctuating temperature regime

Table 2 Proportion (rates) of Aedes japonicus females from Steinbach (France) positive to ZIKV in the abdomen (infection), head (dissemination) and saliva (transmission) after feeding on ZIKV-spiked blood

DPI	IR (%)				DR (%)				TR (%)				TE (%)
DPI	C	95% CI	F	95% CI	C	95% CI	F	95% CI	C	95% CI	F	95% CI	C	95% CI	F	95% CI
7	20/30 (67)	47–83	22/30 (73)	54–88	8/2 (40)	19–64	7/22 (32)	14–55	2/8 (25)	3–65	3/7 (43)	10–81	2/30 (7)	0.8–22	3/30 (10)	2–26
14	30/30 (100)	88–100	18/30 (60)	40–77	6/60 (20)	8–38	11/18 (61)	36–83	3/6 (50)	12–88	8/11 (73)	40–94	3/30 (10)	2–26	8/30 (27)	12–46
21	20/30 (67)	47–83	14/30 (47)	28–66	5/20 (25)	9–49	9/14 (64)	35–87	2/5 (40)	5–85	1/9 (11)	0.2–48	2/30 (7)	0.8–22	1/30 (3)	0.08–17

Abbreviations: DPI, days post-oral feeding; C, constant temperature (27 °C); F, fluctuating temperature (21 ± 7 °C); IR, infection rate (proportion of survived mosquitoes containing infectious virus particles in the abdomen); DR, dissemination rate (proportion of survived mosquitoes containing infectious virus particles in the head among infected mosquitoes); TR, transmission rate (proportion of survived mosquitoes containing infectious virus particles in the saliva among those with disseminated infection); TE, transmission efficiency (proportion of females with positive saliva among all tested females); 95% CI, 95% confidence interval

ISSN: 1756-3305