The number of local Zika infections in Palm Beach County continues to grow, Florida health officials reported on Wednesday as they assured the public that they have found no evidence of active transmission by mosquitoes in the area.
Health inspectors said one more local case had been confirmed in Palm Beach, raising the number of mosquito-borne infections in the county to three this year.
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The new case reported on Wednesday experienced symptoms during the same time frame as the second Palm Beach case, which was announced last week, Florida health officials said. But the cases appear to be unrelated.
Guidelines published by the Centers for Disease Control and Prevention define a local outbreak as two or more people infected with Zika who do not share a household, with travel and sexual transmission ruled out, and who acquired the disease within one-square mile over a period of two weeks or more.
At least 47 local Zika infections have been confirmed this year in Broward, Miami-Dade, Palm Beach and Pinellas counties — but the only areas identified as having active transmission of the disease by mosquitoes are sections of Wynwood and Miami Beach.
Health department officials reported an additional 13 travel-related cases statewide on Wednesday, including five in Miami-Dade, two in Osceola, one in Broward, one in Lee, one in Orange, one in Seminole and two involving pregnant women.
A total of 569 Floridians have contracted Zika this year after traveling abroad to areas where mosquitoes are spreading the disease. An additional 80 pregnant women in Florida have been confirmed to have the disease.
Miami-Dade remains the only county in any state with active spread of Zika by mosquitoes. The virus, which also can be sexually transmitted, poses the greatest risk to pregnant women and their fetuses because it can cause severe birth defects.
Zika cases reported by Florida as of Aug. 31
Number of Cases
Total cases not involving pregnant women*
. . .
. . .
Cases involving pregnant women regardless of symptoms
* Counties of pregnant women are not disclosed.
** Does not include local cases.
Source: Florida Department of Health