Excessive extrapolation from Italian experience? In addition to age, Italy is "famous for the central role of extended families in people’s daily lives. But this intergenerational mixing may have played a part in spreading the infection."https://www.weforum.org/agenda/2020/03/covid-19-coronavirus-epidemiology-expert-explains-italian-death-rate/ …
Could very well be. Lots of China<->N. Italy connections. All it takes is one person.