We calculated a risk factor as follows:
Risk factor = (1/Area of country) * (number of arrivals)
Data were filtered with a minimum land area (min 50,000 sq. km) for getting a realistic visualization of the risk factor for countries with a considerable area of land and tourism.
We observed that the spread of the disease is rapid in smaller countries where a considerable amount of people arrive from foreign countries.
International tourism, number of arrivals. (n.d.). Retrieved June 01, 2020, from https://data.worldbank.org/indicator/ST.INT.ARVL
Land area (sq. km). (n.d.). Retrieved June 01, 2020, from https://data.worldbank.org/indicator/AG.LND.TOTL.K2
Tableau: https://www.tableau.com/en-ca