Covid-19 Cases in China Were Likely 37 Times Higher Than Reported(rand.org)
rand.org
Covid-19 Cases in China Were Likely 37 Times Higher Than Reported
https://www.rand.org/pubs/research_reports/RRA248-3.html
1 comments
Using nation-level data seems questionable. By late January, most cases in China were still in Wuhan, so why wouldn't they look at the incidence rate and flight data for just Wuhan or Hubei?