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

Table 1 Proportion (rates) of Aedes japonicus females from Zürich (Switzerland), 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	25/30 (83)	65–94	14/30 (47)	28–66	10/25 (40)	21–61	10/14 (71)	42–92	7/10 (70)	35–93	3/10 (30)	7–65	7/30 (23)	1–42	3/30 (10)	2–26
14	28/30 (93)	78–99	5/30 (17)	6–35	9/28 (32)	16–52	3/5 (60)	15–95	6/9 (67)	30–92	0/3 (0)	0–7	6/30 (20)	8–38	0/30 (0)	0–11
21	26/30 (87)	69–96%	23/30 (77)	58–90	3/26 (12)	2–30	6/23 (26)	10–48	2/3 (67)	9–99	3/6 (50)	12–88	2/30 (7)	0.8–22	3/30 (10)	2–26

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