1. 2019 Novel coronavirus: where we are and what we know;Cheng;Infection,2020
2. ECDC. Situation update worldwide, as of 31 October2020. https://www.EcdcEuropaEu/En/Geographical-Distribution-2019-Ncov-Cases n.d.
3. Istituto Superiore di Sanità. Integrated surveillance of COVID-19 in Italy. 30 October 2020 update. Https://WwwEpicentroIssIt/En/Coronavirus/Sars-Cov-2-Dashboard. [Accessed 31 October 2020] n.d.
4. COVID-19 in Italy: passing through bitter waters;Guglielmetti;Eur Respir J,2020
5. SARS-CoV-2 and Europe: timing of containment measures for outbreak control;Li;Infection,2020