Zika virus — Worldwide/Unknown
Since epidemiological week (EW) 44 of 2016, no additional countries or territories of the Americas have confirmed autochthonous, vector-borne transmission of Zika virus disease. To date, 48 countries and territories in the Americas have confirmed autochthonous, vector- borne transmission of Zika virus disease since 2015, while 5 countries have reported sexually transmitted Zika cases (Figure 1).
Figure 1 [map]. Countries and territories in the Americas with confirmed autochthonous (vector-
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