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Knowledge on ZIKV has advanced, but demographic impacts remain poorly understood. This study uses data from Brazil to assess whether a decline in births occurred after the onset of ZIKV. Forecasts show significant birth declines, particularly after April 2016. No significant changes in fetal death rates and no pattern of increase in hospitalizations due to abortion complications were observed, although hospitalizations occurred later in some states. We argue that postponement of pregnancy and abortions, primarily, likely affected fertility, with implications for women\u2019s reproductive health.<\/jats:p>","DOI":"10.1073\/pnas.1718476115","type":"journal-article","created":{"date-parts":[[2018,5,29]],"date-time":"2018-05-29T11:39:10Z","timestamp":1527593950000},"page":"6177-6182","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":65,"title":["Implications of Zika virus and congenital Zika syndrome for the number of live births in Brazil"],"prefix":"10.1073","volume":"115","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4606-2795","authenticated-orcid":false,"given":"Marcia C.","family":"Castro","sequence":"first","affiliation":[{"name":"Department of Global Health and Population, Harvard T. H. 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