Zika Transmission Halted in Miami Neighborhood

No new cases of Zika virus transmission have been reported for 45 days in the Wynwood neighborhood of Miami, according to officials.

Sep 20, 2016
Ben Andrew Henry


Florida Governor Rick Scott announced Monday (September 19) that Zika virus is no longer actively spreading in Miami’s Wynwood neighborhood, according to the Associated Press (AP). The US Centers for Disease Control and Prevention (CDC) has lifted its travel advisory, which previously warned pregnant women against travel to the area.

The Wynwood neighborhood became the first site of local, mosquito-borne Zika transmission in the continental U.S. in late July. Authorities began aerial spraying of a pesticide that kills adult mosquitoes and street-level spraying of a pesticide that targets mosquito larvae to curb the outbreak, the CDC noted.

“This outbreak would have kept going without the aerial spraying,” Lyle Petersen, director of the CDC’s division of vector-borne diseases, told the AP. The area was declared virus transmission-risk–free after three mosquito incubation periods—45 days—passed without any new confirmed transmission cases, according to the agency.

Zika continues to spread elsewhere in Miami, however. The Florida Department of Health’s zone of investigation has been expanded to include much of Miami Beach, Governor Scott announced last week (September 16).

He attributed the progress in Wynwood to “aggressive mosquito control measures, outreach to the community, education efforts and the vigilant actions of the residents and businesses in Wynwood,” while adding that “the expansion of the Miami Beach area where local transmission is occurring highlights the need for continued aggressive mosquito control measures and for Congress to immediately approve federal funding to combat Zika.”

The CDC travel advisory for Miami Beach remains in place.