Americas Example country Epidemiological Indicators7 Economic/policy indicators Number of Number of airlines Date of Total New cases Peak case countries/ suspending initial number in last 14 Crude case count territories service to Traffic School 1 2 3 4 case of cases days 5-day new case trend fatality ratio observed? restricting travel country congestion closures 291 277 414 Local US 01/23 224 N 59 5 1,678 1,616 0 2.4% 28 16 245 Rest of region 01/27 699 677 49 105 122 0.7% N 16 Current phase CDC travel health notice Traffic congestion5 Stage 1: Stage 4: Small number of cases identified; no sustained local transmission Case growth and stretched Stage 2: health systems Warning Level 3 03/16/2019 Disease spread and sustained local transmission Stage 5: Alert Level 2 03/16/2020 Stage 3: New cases drop, activity Government action and shifts in public behavior. Not all affected regions resumes None enter stage 3, but interventions and economic impact signal prolonged recovery Source: WHO Situation Reports, TomTom traffic index, Baidu QianXi, CDC, IATA, BBC, NYT, Japan Times, NPR, Reuters, press research McKinsey & Company