[phonypc]

Why would recirculated air be a concern on cruise ships? They're not airplanes. Also COVID-19 only seems to be airborne in the sense that you can get it from coughed/sneezed droplets directly from a sick person, not aerosols that can be widely distributed.

[new2628]

So how did 696 passengers on Diamond Princess become infected?

[barry-cotter]

https://en.wikipedia.org/wiki/2020_coronavirus_outbreak_on_c...

> Kentaro Iwata, an infectious diseases expert at Kobe University who visited the ship, strongly criticised the management of the situation in two widely circulated YouTube videos published on 18 February.[36][37][38][39] He called Diamond Princess a "COVID-19 mill".[40] He said that the areas possibly contaminated by the virus were not in any way separated from virus-free areas, there were numerous lapses in infection control measures, and that there was no professional in charge of infection prevention—the bureaucrats were in charge of everything.