More evidence emerges that coronavirus infections can spread by people with no clear symptomsAll mathematical models and presentations of such are going to be scrutinized heavily as they should be. It seems to me at its core there is a degree of validity.
What I like about it is that in my mind it hits rather hard and offers support for the measures that have been taken and will need to be taken and indicates how dangerous this virus is and more importantly suggests a rather profound potential outcome if we had simply done little or nothing to control and slow it. That by using the 20 to 29 age group in an example, it also suggest that while it may be significantly more dangerous to older age groups, no one is immune to the risk it represents.
https://www.cbc.ca/news/health/covid-19-singapore-symptoms-1.5518772
South Korea amassed the world’s most comprehensive coronavirus data. What it’s taught us so far
https://fortune.com/2020/03/19/coronavirus-south-korea-test-data/
Up to 30% of coronavirus cases asymptomatic
https://www.dw.com/en/up-to-30-of-coronavirus-cases-asymptomatic/a-52900988