Figure 4From: A local outbreak of dengue caused by an imported case in Dongguan China The temporal dynamics of dengue cases and Aedes albopictus prevalence during the dengue outbreak in Dongguan. Since September 10, 2010, measures have been taken to control the mosquitoes, such as cleaning out ponds to minimize breeding places, and spraying insecticides to kill the mosquitoes. The Breteau Index (BI) dropped greatly from 68 on September 10, to 4 on September 15, and 2 on September 19. The BI has been stably maintained at 5 or less since September 19. The dengue case was not reported any more since September 14, 2010Back to article page