It is clear by now this is a multi component attack.
1. Get the chemical in the body. There have been protest in Wuhan about air pollution for some time. Northern Italy also a center of pollution.
Certain vaping products could also be responsible for it. If someone wants, he also could lace fog machines in night clubs.
Smart dust2. Activate it, the places with a lot pollution also happen to be the places with early 5G roll out. Could be aluminum or whatever chemical trigert with a frequency.
3. Inflate severity, people on ventilators have a mortality rate of 80-90%
4. Prohibit autopsies, only six been done so far all in China.
5. People with respiratory illnesses and elderly just naturally add to the "pandemic".
6. Restrict info in cheap effective treatments with zinc + hydroxychloroquine combo
7. Test not a test for SARS-CoV-2 just testing for coronaviruses, there are lots of them.