We’ve done a full 360 on Zika. In early 2016, the WHO declared Zika to be a “Public Health Emergency of International Concern.” Less than two years later we’re just injecting it into brains willy-nilly to see what it does. To be fair, it does seem to kill glioblastomas pretty effectively, so we’ll give mad scientists a pass this time. Still, the Zika crisis did seem to peter out quickly in the Americas, at least quicker than US government investors expected. Without any real epidemic threat from the virus forthcoming, funding for the government and Sanofi’s vaccine development partnership has dried up. There are still two vaccine candidates from GSK and Takeda in development, but the decision has been criticized as short-sighted.