“Our invaluable collaborations with scientific and public health experts, both globally and in the regions affected by the outbreaks of [Zika virus], together with the mobilization of our best experts will expedite efforts to research and develop a vaccine for this disease,” said Dr. John Shiver, Global Head of R&D, Sanofi Pasteur, in a statement. The pregnant women are the focus but the vaccine is intended to be used by everyone.At this time at least 28 countries are identified as having current outbreaks of the virus, according to the U.S. Centers for Disease Control and Prevention. Sanofi Pasteur is the largest company in the world devoted entirely to vaccines and the world’s 3rd largest pharmaceutical company.