The Politbarometer has been conducted since 1977 on an almost monthly basis by the Forschungsgruppe Wahlen on behalf of the Second German Television (ZDF). Since 1990, this...
This collection contains the identifiers and metadata of all tweets mentioning Zika ("zika", "zica", "zikv") from March 1, 2015 through October 31, 2016. The tweets can be retrieved using the Twitter
