Photographer: Dado Galdieri/Bloomberg

For Those Threatened by Zika, Vaccines May Not Come Soon Enough

  • Major drugmakers are studying virus but say they need time
  • Sanofi Pasteur's dengue vaccine took 20 years to develop

Even if the world’s largest drugmakers were to mobilize as fast as they could, and even if the science were straightforward, it’s unlikely a Zika vaccine could be developed quickly enough to address the expanding outbreak of the mosquito-borne virus that may cause birth defects when pregnant women are infected.

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