(CNN) As the new coronavirus continues to cross international borders, the two key questions on public health officials' minds are: 'How deadly is it?' During the 2009 influenza pandemic, the earliest reports listed 59 deaths from approximately 850 suspected cases, which suggested an extremely high case fatality of 7%. Its case fatality was lower than 0.1% and in line with other known human influenza viruses. For SARS, symptoms usually appeared before transmissibility . To answer this question, we can look at data from containment efforts during the 2009 pandemic.

Source: CNN January 31, 2020 11:37 UTC