Been asked by journalists how serious #WuhanPneumonia outbreak is. My answer: take it seriously bc of cross-border spread (planes means bugs travel far & fast), likely human-to-human transmission & previous outbreaks have taught over-responding is better than delaying action. https://t.co/H9A8DHc23D

— Prof. Devi Sridhar (@devisridhar) January 16, 2020