Another thing that jumps out of the data is that Italy is a unique situation. Italy has reported 6,077 deaths, which is over 37% of the world total. I've been told that they had a lot of business with Wuhan, China but I don't know how to confirm that.
It has been reported from Italy that the country got a very late start in containment and mitigation efforts (not really any containment). That is likely responsible for its very high case rate (1,057 per million population, which is highest of the world's large countries so far). Contributing factors are discussed below.
Italy's elderly population (many of whom, with advanced age, have multiple co-morbidities that predispose to a poor outcome) being extensive is believed to be responsible for their high death rate.
According to wikipedia, there were over 320,000 Chinese living in Italy, most of them in northern Italy, not counting Chinese persons who became Italian citizens.
https://en.wikipedia.org/wiki/Chinese_people_in_Italy Some, apparently were allowed to live there illegally.
Many worked in Italian garment/accessory industry.
https://ww.fashionnetwork.com/news/made ... 77237.html
Italy has also been a tourist destination for the Chinese.
This article tells part of the story. Excerpt: "Italy was the first country to offer direct flights from Europe to China 50 years ago and was also the first G-7 country to embrace China's Belt and Road Initiative." It also says 90% of the Chinese in Italy worked in Italian garment industry, with direct flights between Wuhan and Italy facilitating their travel.
https://www.rebellionresearch.com/blog/ ... r-or-worse.
Elsewhere, I have read/seen that many Chinese living in Italy traveled to Wuhan in mid-January for the Chinese Lunar New Year celebration and later returned to Italy, some, unfortunately, being unknowing vectors.
Apparently also, some Chinese tourists were found in Italy to be infected, prompting on Jan. 31 the Italian government's imposing a travel ban on flights from China.
https://www.straitstimes.com/world/euro ... with-china
Note the article's saying Italian Prime Minister Conte said, on Jan 31, that "The two Chinese tourists have been under observation since Wednesday (Jan 29), Mr Conte said, adding that there is no reason to panic and that
the country is well prepared to cope with the emergency."
A prominent Italian virologist blamed political correctness in Italy for contributing to the rapid spread of COVID-19 in Italy.
https://www.theblaze.com/news/italy_pol ... oronavirus
See also:
https://www.redstate.com/nick-arama/202 ... romoterPro
Apparently, the Florence mayor on Feb. 4 felt the Italian government's announcement of travel restrictions from China were "racist" and so declared "Hug a Chinese Day." See, in the above linked redstate article, pictures of proud and happy hugs.
As a corollary, Pres. Trump on Jan. 31 ordered travel restrictions from China into the U.S., for which he was roundly criticized by the Chinese ("US inappropriately overreacted") and his domestic critics.
https://www.politico.com/news/2020/02/0 ... vel-110750
On March 10 he announced travel restrictions from Europe, a move European leaders and some media also criticized.
https://www.forbes.com/sites/davekeatin ... 3bdf75481b
The just linked Forbes article claims that Trump's stated rationale was wholly "untrue." The author, quoting EU officials, implies that the reason Italy's China travel ban had not worked somehow applied also to the USA's China travel ban and EU travel ban, both of which were said would be ineffective.
The CDC had, before Jan. 31, documented that an infected person who had traveled from Wuhan had entered the U.S. Also there were at least two reports of COVID-19 infections, one in Houston and a cluster somewhere in the Northeast US, that were seeded by Americans who had vacationed in Italy and returned as vectors before the EU restrictions were announced. These would seem to have justified both US travel restrictions and likely prevented additional seedings in the US.
In retrospect, one must wonder whether, had Italy and the US known earlier about human-to-human COVID-19 transmission and its spread in Wuhan in December and January, travel restrictions might have been imposed sooner, in Italy's case lessening the extent of spread in that country.