At the European Centre for Disease Prevention and Control (ECDC), the notified COVID-19 case counts in each country worldwide, obtained from only official sources such as the countries’ Ministry of Health, national and regional health authorities and the WHO, are updated each day at 8:00 a.m. These data were used for assessing the trends of COVID-19 in EU/EEA and the UK, and comparing them to that in Italy. As a proxy of the prevalence of active COVID-19 cases, we calculated the 14-day truncated cumulative incidence of COVID-19 cases, thus taking into account the natural course of COVID-19, in each EU/EEA country and the UK, during the 1 January–15 March 2020 period. We also presented the cumulative number of notified cases of each country as at 15 March 2020 8:00 a.m. compared with that of Italy for the 31 January–15 March 2020 period.