Epidemiological investigation reveals autochthonous dengue virus transmission in nonendemic regions, indicating expanding domestic risk for mosquito-borne viral outbreaks.
In 2014, 20 dengue cases were reported in the cities of Wenzhou (5 cases) and Wuhan (15 cases), China, where dengue has rarely been reported. Dengue virus 1 was detected in 4 patients. Although most of these cases were likely imported, epidemiologic analysis provided evidence for autochthonous transmission.
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Wang et al. (2015) studied this question.
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