Fig. 4.

Evolution of daily officially confirmed COVID-19 positive cases and cumulative officially confirmed deaths due to the disease in Spain, Italy, Brazil, and Greece. The dark grey areas represent the period during which the questionnaires were available to the participants. The beize and olive green areas represent the lockdown/confinment period for each country based on data retrieved from ministries announcements and official data (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article).