With FDA approval, GM mosquitoes could join Florida's Zika fight

miércoles 3 de agosto de 2016 11:11 GYT

By Kate Kelland

LONDON Aug 3 (Reuters) - Genetically modified (GM) mosquitoes could be let loose in Florida's battle against the Zika virus if regulators approve them - and a decision is expected imminently, according to British firm Oxitec that engineers the insects.

Modified Aedes aegypti mosquitoes - genetically altered so their offspring die before being able to reproduce - are under review by the Food and Drug Administration (FDA) for possible use in the United States.

Oxitec wants to conduct an investigational trial in the Florida Keys region to evaluate the GM strain's effectiveness in reducing populations of Aedes mosquitoes, which can spread diseases including Zika, dengue, yellow fever and chikungunya.

Efficacy trials in Brazil, Panama, and the Cayman Islands showed that its genetically modified mosquitoes can reduce localised Aedes aegypti populations by more than 90 percent.

As well as FDA approval, the Florida district's board has pledged to seek residents' approval before going ahead.

Some Florida residents have signed a petition expressing concern about the release of the GM insects, saying they could have unknown and unintended effects on the ecosystem.

Oxitec's head of field operations Andrew McKemey told reporters in London on Wednesday that his firm had been invited by the Florida Keys Mosquito Control District to propose a pilot study of the technology.

"We expect a decision (from the FDA) any minute now," McKemey said. "We've already built a laboratory there (in Florida) - a mass production unit - so (with approval) we could start immediately."   Continuación...