Lessons for preparedness and reasons for concern from the early COVID-19 epidemic in Iran by Ghafari, M, Hejazi, B, Karshenas, A, Dascalu, S, Kadvidar, A, Khosravi, MA, Abbasalipour, M, Heydari, M, Zeinali, S, Ferretti, L, Ledda, A, Katzourakis, A