The BG-Sentinel (a.k.a. the BG trap or BGS trap) from Biogents is a result of more than sixteen years of academic research into the host-finding of mosquitoes. It is a mosquito trap used by mosquito professionals worldwide. In combination with the artificial human skin scent, the BG-Lure, it is widely considered the gold standard for the sampling, monitoring, and surveillance of the vectors of dengue, chikungunya, Zika, and yellow fever (Aedes [Stegomyia] aegypti, Ae. [St.] albopictus, Ae. [St.] polynesiensis). With the addition of carbon dioxide, the BG-Sentinel is an excellent surveillance tool for mosquitoes in general.