Nobody know where a reputable source is. It’s just a laundry list of all the ‘talking points’. I keep hearing people say this stuff, but nobody knows where it came from.

It is certainly not the message the CDC is putting out in the USA.

https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/summ...

The Seattle Times ‘Fact sheet’ is also singing a different tune.

https://www.seattletimes.com/seattle-news/health/facts-about...