Florida is making some progress with its aggressive spraying of insecticides to control mosquitos that vector Zika Virus. The Wynwood area north of Miami, the first site of local Zika transmission, has not had a new transmission case in 45 days. This suggests that Zika is no longer present in the local Wynwood mosquito population.
Meanwhile Miami Beach has reported several new cases of local transmission and the area at risk for local transmission of Zika is tripled. The mosquito sprays are receiving criticism from environmentalists and local residents concerned about the environmental and health effects of the insecticides. However, local authorities and Zika experts agree that the risks from NOT controlling mosquitos and Zika are far greater than the risks from the insecticide for the population as a whole. Unfortunately, there are no good options for mosquito control that do not involve insecticides. The authorities are acting to minimize the severe and consequential risk of a larger Zika outbreak against a much lower but uncertain risk from spraying the insecticide naled.