9,000 cases of coronavirus in the US could stem from Wuhan alone
Travel before the city’s lockdown could have led to thousands of U.S. infections.
The study, which is not yet peer reviewed, was posted on Sunday (March 8) on the preprint database MedRxiv. It should not be taken as a final word on how many coronavirus cases actually exist in the United States, because it focuses only on travel from Wuhan and does not include potential transmission from Italy, Iran, South Korea or other places where the new virus SARS-CoV-2 is widespread.
https://www.livescience.com/thousands-coronavirus-cases-in-us.html
Estimating the scale of COVID-19 Epidemic in the United States: Simulations Based on Air Traffic directly from Wuhan, China
This article is a preprint and has not been peer-reviewed [what does this mean?]. It reports new medical research that has yet to be evaluated and so should not be used to guide clinical practice.
https://www.medrxiv.org/content/10.1101/2020.03.06.20031880v1.article-info
The Chinese New Year is the world’s largest annual human migration, that’s why this thing is global.
Clinical presentation and virological assessment of hospitalized cases of coronavirus disease 2019 in a travel-associated transmission cluster
This article is a preprint and has not been peer-reviewed [what does this mean?]. It reports new medical research that has yet to be evaluated and so should not be used to guide clinical practice.
Clinical sensitivity of RT-PCR on swabs taken on days 1-5 of symptoms was 100%, with no differences comparing swab and sputum samples taken simultaneously. ...Shedding of viral RNA from sputum oulasted the end of symptoms
https://www.medrxiv.org/content/10.1101/2020.03.05.20030502v1.
NOTE COMMENT:
Christian Drosten:
Our comprehensive shedding study on the Munich #COVID2019 cluster: proof of replication in upper resp tract, virus in stool but no live virus isolation fom stool, long shedding but no live iso after 1 week in sputum.
https://twitter.com/c_drosten/status/1236967026150854657