Florida investigation links four recent Zika cases to local mosquito-borne virus transmission

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The Centers for Disease Control and Prevention (CDC) has been informed by the State of Florida that Zika virus infections in four people were likely caused by bites of local Aedes aegypti mosquitoes. The cases are likely the first known occurrence of local mosquito-borne Zika virus transmission in the continental United States. CDC is closely coordinating with Florida officials who are leading the ongoing investigations, and at the state's request, sent a CDC medical epidemiologist to provide additional assistance.

State officials have responded rapidly with mosquito control measures and a community-wide search for additional Zika cases. Under the current situation, there are no plans for limiting travel to the area. "All the evidence we have seen indicates that this is mosquito-borne transmission that occurred several weeks ago in several blocks in Miami," said Tom Frieden, M.D., M.P.H., director of the CDC. "We continue to recommend that everyone in areas where Aedes aegypti mosquitoes are present -- and especially pregnant women -- take steps to avoid mosquito bites. We will continue to support Florida's efforts to investigate and respond to Zika and will reassess the situation and our recommendations on a daily basis." Zika virus spreads to people primarily through the bite of an infected Aedes species mosquito (Ae. aegypti and Ae. albopictus), but can also be spread during sex by a person infected with Zika to their partner. Most people infected with Zika won't have symptoms, but for those who do, the illness is usually mild. However, Zika infection during pregnancy can cause a serious birth defect of the brain called microcephaly and other severe fetal birth defects.
Read More: ScienceDaily

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