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FILE - In this Wednesday, Sept. 14, 2016 file photo, a worker from the Ministry of Health sprays mosquito insecticide fog in Kuala Lumpur, Malaysia, a day after two new Zika virus infection cases were detected in the country. On Thursday, Sept. 29, 2016, U.S. health officials are advising pregnant women to postpone travel to 11 countries in Southeast Asia because of Zika outbreaks in the region. The advisory targets travel to Brunei, Cambodia, East Timor, Indonesia, Laos, Malaysia, the Maldives, Myanmar, the Philippines, Thailand and Vietnam. (AP Photo/Joshua Paul)

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