Shares of BioCryst Pharmaceuticals Inc. tumbled more than 30 percent following a Phase II miss with the influenza drug peramivir, despite assurances from company executives that inadequate needle-lengths were to blame. (BioWorld Today)

Shares of BioCryst Pharmaceuticals Inc. tumbled more than 30 percent following a Phase II miss with the influenza drug peramivir, despite assurances from company executives that inadequate needle-lengths were to blame. (BioWorld Today)