Panama looks to GM mosquitoes to combat Zika

PANAMA CITY – Panama is mulling releasing millions of genetically modified mosquitoes on its territory to combat the spread of the Zika virus, a prominent health official told AFP on Thursday.

The Health Ministry and a tropical disease research lab, the Gorgas Institute, are evaluating “the viability and feasibility” of repeating and expanding on just such an experiment that took place two years ago using GM mosquitoes provided by the British company Oxitec, said Israel Cedeno, head of the ministry’s epidemiological unit.

As back then, the idea would be to introduce male Aedes aegypti mosquitoes whose genes had been altered so that their offspring, after mating with bloodsucking females, die at the larva stage.

In 2014, the project, carried out in a town west of Panama’s capital, resulted in a 93 percent decline in the mosquito population in the area.

Cedeno cautioned, however, that while the results were encouraging “its cost is high.”

Because of that, the government needed to work out if the money would be better spent on genetically tinkering with mosquitoes or boosting public information campaigns to urge eradication of breeding spots for the insects.

In Panama there are 50 confirmed cases of Zika infection, all of them in its Caribbean coastal region.

The World Health Organization has said it suspects the virus might be behind a sudden spike in birth defects in a part of northern Brazil.