Work is progressing on developing a vaccine that can thwart the Zika virus, but it will take years to get one to market, experts warn.
Two rival vaccines for Zika have the best chance of becoming available for field testing by early next year, said Dr. Anthony Fauci, director of the U.S. National Institute of Allergy and Infectious Diseases (NIAID).
But testing the vaccines could become complicated if Zika does not reappear in the South American countries where it achieved epidemic proportions this year, Fauci wrote in a commentary published Sept. 29 in the New England Journal of Medicine.
