All patients older than 18 years were included in 9 ED during 51 weeks. Patients transferred between the centers participating in the study were excluded.~The investigators count the number of visits per weeks, then the number of visits according to :~reason for consultation Covid-like (cough, fever or dyspnea),~reason for consultation with accordance to French Emergency Medicine Society (SFMU) reference~diagnosis with accordance to SFMU reference~orientation (home, medical unit, chirurgical unit, intensive care unit, psychiatric unit, death)~Pearson's correlation test compare incidence rate per week with this counts and admission rate.
With lockdown, Emergency Departments (ED) visits decrease, principally for visits unrelated with Covid-19. In this study, the investigators aimed to find a correlation between ED visits and incidence rate of Covid-19 in a French metropolis.