pandemic(6) COVID-19(6) COVID-19 pandemic(5) effective(4) changes in(3) approach(3) indicated(3) outbreak(3) Travel(3) Outbreaks(3) change(3) investigated(2) outlier(2) Local(2) Europe(2) variations(2) city(2) Decline(2) Time series pattern detection(2) SCR(2) increase(2) Frequency(2) International mobility(2) outcome(2) timelines(2) New(2) Epidemics(2) New York(2) COVID-19 effects(2) outliers(2)