From Twitter https://twitter.com/drsekula: RT @carlzimmer: American Zika in 2016 and 2017: The Strange Case of Mr. Hyde and Dr. Jekyll | Speaking of Medicine http://blogs.plos.org/speakingofmedicine/2017/06/23/american-zika-in-2016-and-2017-the-strange-case-of-mr-hyde-and-dr-jekyll/