AstraZeneca Shot Speculation 'Not Helpful': Moderna Co-founder

Mar.15 -- Noubar Afeyan, co-founder of Moderna Inc. and CEO of Flagship Pioneering Inc., discusses the remaining challenges in the Covid-19 vaccination efforts and the progress in creating shots for children. He also says speculation about the efficacy of the AstraZeneca PLC doses are not helpful and there needs to be trust in authorities who are working hard to deliver solutions. Afeyan speaks to Emily Chang on "Bloomberg Technology."