Health officials in Thailand announced Friday that two babies have tested positive for Zika-related microcephaly, the birth defect that causes abnormally small heads and malformed brains. Though Thailand has confirmed 349 cases of the mosquito-borne illness since January — with 33 of those cases in pregnant women — this marks the first time cases of microcephaly tied to Zika have been reported in Southeast Asia.
Thailand's announcement came just a day after the U.S. Centers for Disease Control and Prevention advised pregnant women against non-essential travel to 11 Southeast Asian countries, including Brunei, Cambodia, Myanmar, Indonesia, Laos, Malaysia, Maldives, Philippines, Thailand, East Timor, and Vietnam. The CDC has already issued a "travel notice" for Singapore, where 393 cases of Zika have been recorded.
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