Brazil Announces Dengue Fever Emergency in GM Mosquito Trials Region

Civil society groups today expressed alarm at an increase in dengue incidence, leading to an emergency decree, in a town in Brazil where releases of genetically modified (GM) mosquitoes are taking place.

The promise was to create genetically modified mosquitoes that would end dengue, but results from field trials conducted in Bahia, Brazil have not been published to date and did not evaluate the relation between Aedes aegypti mosquito populations and the occurrence of dengue [1]. Nevertheless, the Brazilian regulator Comissão Técnica Nacional de Biossegurança (CTNBio) recently gave the green light to the commercialization of the technology proposed by Moscamed Brazil in partnership with the English company Oxitec and the Universidade de São Paulo.

The Brazilian press had welcomed the new weapon to combat dengue but missed the information that Jacobina’s mayor, a locality where the trials took place, issued a decree in February 2014 renewing the state of emergency “due to the abnormal situation characterized as a biological disaster of dengue epidemic.” [2]. Before that, Moscamed had announced 81% and 100% reduction in the number of Aedes aegypti mosquitoes in at least two localities of Jacobina, claiming that this meant the experiments were a success [3]. According to Oxitec, pilot-scale releases started in the north-west of Jacobina in June 2013 and the programme will roll out across the entire city over two or three years [4].

[link to sustainablepulse.com]