Fourth sample of Miami Beach mosquitoes tests positive for Zika virus


Aedes aeqypti mosquitoes are the type that spread Zika.

Aedes aeqypti mosquitoes
are the type that spread Zika.

Zika has been detected in another mosquito sample from the same small area in Miami Beach, where it was announced on Sept. 1 that three other samples had tested positive for Zika, the Florida Department of Agriculture and Consumer Services said Friday.

All samples have consisted of Aedes aeqypti mosquitoes and are from an area where increased trapping and intensified mosquito control measures have already been underway since the Florida Department of Health determined local transmission had occurred.

Agriculture Commissioner Adam Putnam issued a mosquito declaration, which is available here, on July 29 when local transmission first occurred in Florida, and today he has extended this declaration for another 45-day period.

“This find underscores the continued need already underway in Miami-Dade to employ an aggressive and comprehensive mosquito control strategy,” Putnam stated. “Only with a multi-faceted approach to controlling the Zika-carrying mosquito will we be able to protect Floridians and visitors.”

“The fact that we have identified a fourth Zika-positive mosquito pool in Miami Beach serves as further confirmation that we must continue our proactive and aggressive approach to controlling the mosquito population, including our recent decision to begin aerial spraying in combination with larvicide treatment by truck,” said Miami-Dade County Mayor Carlos A. Gimenez.

The sample announced positive for Zika today was first tested at the Bronson Animal Disease Diagnostic Laboratory in Kissimmee and has undergone three quality control tests, all with the same results. Next, the Centers for Disease Control and Prevention will perform additional testing for further confirmation.

“Despite relentless efforts by the city and the county, this new discovery shows that the Zika threat continues to grow. Today’s announcement reinforces the need for us to continue being as aggressive as we can be against Zika,” said Miami Beach Mayor Philip Levine.

Like the three positive mosquito samples announced on Sept. 1, this fourth positive mosquito pool was also collected in Miami Beach within the current zone that has been treated for local transmission.

Florida’s proactive efforts, which are conducted by local mosquito control programs and supported by the expertise provided by the Florida Department of Agriculture and Consumer Services, include: eliminating larval habitats by emptying standing water, treating water-holding containers with long-lasting larvicide, providing outdoor residual and spatial insecticide treatments to reduce adult vectors, and conducting adult mosquito surveillance to evaluate the effectiveness of treatments.

Miami-Dade County’s Mosquito Control team will continue to conduct inspections to reduce mosquito breeding and perform spray treatments as necessary in a 1/8-mile radius around the trap location.

On Feb. 2 the Florida Surgeon General declared a public health emergency in regards to the Zika virus. Floridians can help prevent the spread of Zika by eliminating mosquito breeding grounds by draining standing water around their homes, businesses and communities.

Floridians can also assist by allowing officials who are conducting mosquito control efforts to access their property.

The Florida Department of Agriculture and Consumer Services has tested more than 2,900 mosquito samples, consisting of nearly 48,000 mosquitoes, since May, and these four total samples from a small area in Miami Beach are the only samples to test positive.


For more information on the Zika virus, visit the Florida Department of Health’s website at








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