The New York Times/AP, 02/04/2016
Brazil is not sharing enough samples and disease data to let researchers determine whether the Zika virus is, as feared, linked to the increased number of babies born with abnormally small heads in the South American country, U.N. and U.S. health officials say.
Without viruses from Brazil — the epicenter of the ongoing Zika crisis — laboratories in the United States and Europe are being forced to work with samples from previous outbreaks, and is frustrating efforts to develop diagnostic tests, drugs and vaccines. Scientists tell The Associated Press that having so little to work with is hampering their ability to track the virus’ evolution.
One major problem appears to be Brazilian law. At the moment, it is technically illegal for Brazilian researchers and institutes to share genetic material, including blood samples containing Zika and other viruses.