With the introduction of new virus types and the re-emergence and spread of its vectors, dengue has become a growing problem in the tropics and subtropics worldwide. Dengue is transmitted mainly by day-biting tiger mosquitoes (Aedes mosquitoes of the subgenus Stegomyia).

These mosquitoes are also important vectors of a number of other important viral infections, such as yellow fever and chikungunya fever. Chikungunya has recenetly become an important public health threat in Indian Ocean islands off the east coast of Africa. In 2005/2006, the island of Réunion is experincing a massive outbreak of this disease, for which no vaccination or cure is available.

Field studies on all continents continue to show that the BG-Sentinel is the most efficient trap for Aedes (Stegomyia) mosquitoes. The BG-Sentinel's unique design generates a plume of artificial skin emanation which is similar to convection currents that are produced by a warm blooded host.

Aedes aegypti, a.k.a. the yellow fever mosquito, is the principal vector of dengue and yellow fever. It also transmits chikungunya. Field studies in Brazil, Australia, and Asia have demostrated that the BG-Sentinel is the most effective method to trap and monitor Aedes aegypti. (Picture: CDC / James Gathany)

Aedes albopictus, the Asian tiger mosquito, is spreading rapidly worldwide, not only in tropical and substropical, but also into temperate regions. The Asian tiger mosquito is a potential and increasigly significant vector for dengue, chikungunya and other diseases. The BG-Sentinel has been field-tested in the United States, Italy, Australia, and Asia with Aedes albopoictus, with excellent results.

Aedes polynesiensis, the Polynesian tiger mosquito, is an important vector of elephantiasis and also transmits dengue in the South Pacific. Field tests in American Samoa with Aedes polynesiensis showed superior catching rates for the BG-Sentinel.