Time distribution of the 14-day truncated cumulative incidence of COVID-19 for (A) 14-day truncated cumulative incidence ≥ 4.0 cases per 100,000 population and > 30 notified casesa and (B) 14-day truncated cumulative incidence < 4.0 cases per 100,000 population or < 30 notified casesb, EU/EEA countriesand the UKc, 15 March 2020