Table 1.

Detection of the Japanese encephalitis virus or viral RNA in mosquitoes collected from northern Australia and Papua New Guinea, 1995–2005.

Location	Year	Number of Culex Processed	Number of Mosquitoes of Other Genera Processed	Trapping Method a	Number of JEV Positive Pools	Composition of Positive Pools	Reference
Badu (Torres Strait)	1995	2987	10,313	CDC-LT	8	Culex sitiens subgroup b	[37]
	1998	26,158	5730	CDC-LT	42	Cx. sitiens subgroup	[38]
				CDC-LT	1	Aedes vigilax
	2000	7779	83,461	CDC-LT	1	Culex gelidus	[39]
	2002	Not separated by taxonomic group c		MM	3	Unknown	[24]
	2003	22,157	Not processed d	CDC-LT, MM	18	Cx. sitiens subgroup	[24,40]
				CDC-LT, MM	2	Cx. gelidus	[24], this paper
				CDC-GT	1	Culex bitaeniorhynchus	This paper
	2004	1795	Not processed	NMT	1	Cx. gelidus	[24]
	2005	4563	Not processed	NMT	1	Cx. sitiens subgroup	[24]
Moa (Torres Strait)	2003	1400	Not processed	MM	2	Cx. sitiens subgroup	[24]
				MM	1	Cx. gelidus	[24]
Cape York Peninsula	2004	23,144	Not processed	CDC-LT	1	Cx. sitiens subgroup	[21]
Saibai (Torres Strait)	2000	45,581	38,473	CDC-LT	1	Cx. sitiens subgroup	[41]
Papua New Guinea	1997	35,038	25,445	CDC-LT	1	Cx. sitiens subgroup	[15]
	1998	210,200	49,717	CDC-LT	2	Cx. sitiens subgroup

^a Trap used to collect mosquitoes for virus detection: CDC-LT is Centers for Disease Control light trap baited with CO₂ with or without 1-octen-3-ol; MM is “Mosquito Magnet^®”, a propane-powered updraft trap; CDC-GT is Centers for Disease Control gravid trap; and NMT is the Northern Australia Quarantine Strategy Mozzie Trap, which is a CO₂-baited updraft trap. ^b Includes the morphologically similar species Culex annulirostris, Cx. palpalis and Cx. sitiens. ^c These mosquitoes were collected as part of a trial of a remote trapping system and were processed without being sorted and processed according to the taxonomic group. ^d After 2000, only members of the Culex genus were processed.