Soft tick, Argas spec.
West Nile virus (WNV) is an arbovirus, which is transmitted to humans mainly by mosquitoes of the genera Culex, Aedes and Anopheles. Mites and soft ticks collected directly from wild and domestic birds and their nests were tested for the presence of West Nile virus (WNV). The cattle egret Argas, Argas arboreus was collected from the nests of 7 cattle egret colonies. Out of 1,000 A. arboreus pools examined, 16 were positive for WNV. Based on RT-PCR technique, ticks from 4 of these colonies were positive for WNV. Out of 37 cattle egret squabs examined, 37.8% had serum-neutralizing antibodies to WNV. WNV was also detected in 1 out of 15 pools of R. turanicus, in 1 out of 21 pools of O. sylviarum and in one out of 18 pools of D. gallinae, while 63 pools of A. reflexus, 11 of R. sanguineus and 30 of Hyalomma spec. were negative (A 116).