A female Aedes aegypti mosquito is shown in this 2006 Center for Disease Control (CDC) photograph released to Reuters on October 30, 2013. The mosquito, known to carry such potentially deadly diseases... more 
A female Aedes aegypti mosquito is shown in this 2006 Center for Disease Control (CDC) photograph released to Reuters on October 30, 2013. The mosquito, known to carry such potentially deadly diseases as dengue and yellow fever, has been detected for the first time in California, raising concerns among public health officials and prompting intense efforts to prevent the spread of the potentially deadly diseases. REUTERS/James Gathany/CDC/Handout via Reuters (UNITED STATES - Tags: HEALTH) ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS less 
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Reuters | Photo By HANDOUT / REUTERS
Wed, Oct 30, 2013 5:37 PM EDT