Fig. 4

Comparison between the number of COVID-19 cases per million when public health containment initiatives were taken by the five countries (Mauritania, Uganda, Laos, Vietnam, and Gambia) with the lowest number of cases per million and the five countries (Italy, Spain, Switzerland, Belgium, Portugal) with the largest number of cases per million, in the first 30 days since their first confirmed case [11, 272]. Countries with a population of less than one million or with exceptional circumstances (civil war) were excluded [11, 272]