Fig. 2From: Comparison of the human-baited double net trap with the human landing catch for Aedes albopictus monitoring in Shanghai, ChinaField mosquito monitoring with HDN and HLC. a, b The two human baits of HLC and HDN exchanged between the first and the second 30 min to minimize the possible attractant bias. c, f Participants of HLC attracted mosquitoes with the left or right leg exposed. d, e The collectors of HDN approach the trap every 5 min to catch mosquitoes resting in front of the outer net and between the nets using a portable battery-powered aspiratorBack to article page