MIAMI (AP) — South Beach has been identified as a second site of Zika transmission by mosquitoes on the U.S. mainland, and containing it there will be difficult because high-rise buildings and strong winds make it impractical to spray the neighborhood from the air, officials said Friday.
Five cases of Zika have been connected to mosquitoes in Miami Beach, bringing the state’s caseload to 36 infections not related to travel outside the U.S., Florida’s governor and health department announced Friday.
The discovery prompted the U.S. Centers for Disease Control and Prevention to announce that it was expanding its travel warning for pregnant women to include an area in Miami Beach known for nightclubs, pedestrian thoroughfares and beaches.
Zika infection can cause severe brain-related birth defects, including a dangerously small head, if women are infected during pregnancy.
The virus’s apparent spread from a Miami neighborhood popular for day trips to the South Beach streets where many tourists sleep has rattled the tourism industry, even in the slower summer season.
Gov. Rick Scott has directed Florida’s health department to offer mosquito spraying and related services at no cost to Miami-Dade County’s hotels, restaurants and tourist attractions. More than 15.5 million people made overnight visits to Miami and nearby beaches in 2015, with an impact of $24.4 billion, according to figures from the Greater Miami Convention and Visitors Bureau.
The CDC previously warned pregnant women to avoid the Wynwood arts district in Miami. In its statement Friday, the agency said pregnant women may also want to consider postponing nonessential travel throughout Miami-Dade County if they’re concerned about potential exposure to the mosquito-borne virus.
“We’re in the midst of mosquito season and expect more Zika infections in the days and months to come,” said CDC director Dr. Tom Frieden. “It is difficult to predict how long active transmission will continue.”
Aerial spraying and door-to-door operations on the ground have cut mosquito populations in Wynwood by up to 90 percent, but Zika may be continuing as mosquitoes breed, Frieden told reporters Friday.
“The mosquitoes are persistent and we won’t know for a couple of weeks whether these aggressive measures have worked,” Frieden said.
Aerial spraying isn’t practical over South Beach because of the height of its buildings and strong winds over the narrow island city, Frieden said. Officials will be limited to spraying for mosquitoes at ground level in the highly populated area.
“Miami Beach does have a series of characteristics that make it particularly challenging,” Frieden said.
Two of the people infected in Miami Beach are Miami-Dade County residents, and three are tourists, including one man and two women, Scott said. The tourists are residents of New York, Texas and Taiwan.
The new area of infection in South Beach is roughly 1.5 square miles between 8th and 28th streets, according to Florida’s Department of Health.
Miami Beach Mayor Philip Levine said during a news conference Friday afternoon that the Zika reports certainly aren’t ideal for tourism, but he expects the long-term impact to be relatively minor. He said city workers are trying to get rid of standing water and foliage that might attract the virus-spreading insects, while the county begins a fumigation program to kill the bugs.
“Between our efforts and the county’s spraying efforts, the last thing I’d ever want to be on Miami Beach is a mosquito,” Levine said.
Three vacuum trucks purchased to help Miami Beach fight rising sea levels have been used since the beginning of the year to drain water in low-lying areas where mosquitoes could breed, said Roy Coley, the city’s infrastructure director.
The city also has been sending workers to fill potholes collecting water in alleys and fix leaky beach showers, in addition to applying pesticides to the area’s many construction sites and flood-prone residential streets, Coley said.
“Our call volume has increased significantly,” Coley said.
Officials at Art Basel Miami Beach and other upcoming events cautiously expressed confidence in the region’s mosquito control efforts. Organizers of the Americas Food and Beverage Show will add mosquito repellent to goody bags at the late September event at the Miami Beach Convention Center.
“We’re taking extra precautions,” said Yendi Alvarez, the show’s media coordinator. “This wasn’t even a thought last year. We put this in place once the news started getting crazy.”
Possible infections outside Wynwood and Miami Beach also are being investigated. The virus only causes mild, flu-like symptoms in most people, making it difficult to confirm local transmissions, the CDC said.
“For this reason, it is possible that other neighborhoods in Miami-Dade County have active Zika transmission that is not yet apparent,” the CDC’s statement said.
The U.S. Senate’s top Democrat issued a call for Congress to return from its weekslong summer break to deal with the virus, an unlikely scenario in light of the dysfunction that prevented lawmakers from agreeing on money to fight the mosquito-borne disease. Sen. Harry Reid, D-Nevada, said that the American people cannot afford to wait any longer for action.
President Barack Obama requested $1.9 billion in emergency funds in February to develop a vaccine and control the mosquitoes that carry the virus. But lawmakers left Washington in mid-July for a seven-week recess without approving any of the money. Abortion politics played a central role in the impasse.
Republicans angered Democrats by adding a provision to a $1.1 billion take-it-or-leave-it measure that would have blocked Planned Parenthood clinics in Puerto Rico from receiving money.
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