National Institute of Allergy and Infectious Diseases Director Anthony Fauci suggested at a Senate hearing that a Zika virus vaccine could be available for widespread testing in 2017 – if the epidemic continues at its current rate.
But Fauci's exchange with Health, Education, Labor and Pensions Committee Chairman Lamar Alexander, R-TN, on Feb. 24 underscored the challenge of vaccine development, as a diminishing outbreak can mean longer...