West Nile Virus Circulation in Mosquitoes in Greece (2010–2013)

Table 4

MIR and MLE values calculated for regions studied, for years 2010–2013.

Year	Region	Mosquito species	Number of pools	Number of positive pools	Number of individuals	MIR infection rate	MLE infection rate
2010	Central Macedonia	Culex pipiens	110	2	6597	0.30 (CI: 0–0.01)	0.31 (CI: 0.05–1.01)
2011	Central Macedonia	Culex pipiens	642	42	49348	0.85 (CI: 0.59–1.11)	0.88 (CI: 0.65–1.18)
	Central Greece & Thessaly	Culex pipiens	99	11	2961	3.71 (CI: 1.52–5.91)	3.87 (CI: 6.66–2.08)
	East Macedonia and Thrace	Culex pipiens	83	7	5162	1.36 (CI: 0.35–2.36)	1.38 (CI: 0.62–2.69)
		Ochlerotatus caspius	73	11	12473	0.88 (CI: 0.36–1.40)	0.94 (CI: 0.50–1.62)
2012	Attica	Culex pipiens	182	18	2354	7.65 (CI: 4.13–11.17)	8.05 (CI: 5.08–12.24)
	East Macedonia and Thrace	Culex pipiens	178	22	8385	2.62 (CI: 1.53–3.72)	1.84 (CI: 2.84–4.22)
	Central Macedonia	Culex pipiens	119	13	62081	1.05 (CI: 0.79–1.30)	1.09 (CI: 0.85–1.38)
		Ochlerotatus caspius	114	5	9099	0.55 (CI: 0.07–1.03)	0.56 (CI: 0.21–1.22)
	Thessaly	Culex pipiens	119	13	5687	2.29 (CI: 1.04–3.53)	2.41 (CI: 1.37–3.99)
	West Greece	Culex pipiens	17	9	2014	4.46 (CI: 0.00–0.01)	0.01 (CI: 0.00–0.01)
	Central Greece	Culex pipiens	53	31	2070	14.98 (CI: 9.74–20.21)	22.80 (CI: 17.18–31.39)
2013	Attica	Culex pipiens	130	44	3906	10.75 (CI: 7.52–13.99)	15.76 (CI: 11.66–20.65)