Last updated: 10:06 AM ET, Mon September 26 2016

Health Officials Using Two-Part Method to Stop Zika Virus Outbreak in Florida

Impacting Travel | Donald Wood | September 26, 2016

Health Officials Using Two-Part Method to Stop Zika Virus Outbreak in Florida

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Health officials in Florida revealed that a double dose of pesticides was required to kill both adult mosquitoes and their larvae in an effort to stop the outbreak of the Zika virus in the state.

According to, officials from the Centers for Disease Control and Prevention (CDC) attempted to ease the fears of locals who were concerned about aerial pesticides by not only revealing that the method is safe, but also saying it’s been the most effective tool used in the fight against Zika thus far.

While the Florida Department of Health and the CDC declared the Zika outbreak over in the Wynwood neighborhood of Miami last week, there is still a second outbreak being battled in Miami Beach. Three new cases were reported Friday, bringing the total in Florida to 105 cases.

To clear the Wynwood neighborhood, health officials used ground spray bacteria in addition to aerial spraying of the pesticide naled over the course of several weeks. While the ground control methods worked over time, the aerial spraying slowed transmission of the Zika virus dramatically.

CDC director Dr. Tom Frieden acknowledged that the fight against Zika carrying mosquitoes is a two-part process, with the aerial spraying killing the adult mosquitoes and the ground spraying killing the larvae.

As for the concerns about the usage of the pesticide naled, CDC officials released a statement saying, “Less than one ounce of naled per acre is used for aerial spraying, which might explain the absence of observed negative health effects during and after aerial spraying.”

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