atyy
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nsaspook said:
https://www.cnbc.com/2020/06/09/who...coronavirus-spread-much-is-still-unknown.html
The WHO has clarified its remarks - both of these points were in the original remarks but not widely reported.
- The WHO is using [standard] technical terminology in which "asymptomatic" refers to people who are infected but never have any symptoms, not even mild ones. Asymptomatic people are distinguished from pre-symptomatic people who later develop symptoms.
- The estimates that asymptomatic transmission is rare is preliminary, based on a few studies, and more data is needed.
bob012345 said:Gee, that would have been useful information before the lockdowns and 30 million people lost their jobs...![]()
The WHO's report (Feb 28) on data from China stated "Asymptomatic infection has been reported, but the majority of the relatively rare cases who are asymptomatic on the date of identification/report went on to develop disease. The proportion of truly asymptomatic infections is unclear but appears to be relatively rare and does not appear to be a major driver of transmission."
Apart from the uncertainties in that conclusion, that initial estimate was made with most of China in lockdown-like conditions, so it was not clear whether it would apply more broadly.
The experiences of South Korea, Japan, Taiwan, Hong Kong, Singapore in the early phase did suggest that testing and tracing with social distancing without a lockdown could acceptably manage the spread of the disease, although some of those did later have semi-lockdowns.