<human>: What are the latest news about the Zika virus?
<bot>: The latest news about the Zika virus is that the World Health Organization has declared it a global health emergency. It is spreading rapidly in South and Central America, as well as the Caribbean. There have been several cases of birth defects associated with the virus, including microcephaly, which causes babies to be born with abnormally small heads. In addition, there have been reports of Guillain-Barre syndrome, a neurological disorder that can cause temporary paralysis.