New evidence has emerged from China indicating that the large
majority of coronavirus infections do not result in symptoms. Experts say that
it was quite likely that the virus had been circulating for longer than
generally believed and that large swathes of the population had already been
Link to article: https://www.bmj.com/content/369/bmj.m1375
Study shows that by the end of February 2020 without non-pharmaceutical interventions (NPIs) in China– such as early detection, isolation of cases and social distancing – the number of infected people would have been 67 times larger than that which occurred. If NPIs could have been conducted one week, two weeks, or three weeks earlier in China, cases could have been reduced by 66%, 86%, and 95%, respectively, together with significantly reducing the number of affected areas. Improved disease detection, isolation of cases and social distancing are likely to a far greater positive impact on containment than travel restrictions, says the study.
Link to study: https://www.medrxiv.org/content/10.1101/2020.03.03.20029843v3
The pandemic is shutting down industrial activity and temporarily slashing air pollution levels over China, satellite imagery from the European Space Agency shows.
Linkt to data: https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-5P/COVID-19_nitrogen_dioxide_over_China
In this pre-print researchers analyzed the timing of control measures and of community spread of COVID-19 in the Chinese cities of Wuhan and Guangzhou from January 10 to February 29, 2020. Early intervention resulted in Guangzhou having “lower epidemic sizes and peaks” than Wuhan in the first wave of the outbreak.
Link to paper: https://dash.harvard.edu/handle/1/42599304
Not a paper or report but a very well researched book written by someone on the front lines. “China Syndrome is a fast-moving, truth-is-stranger-than-fiction thriller that doubles as an excellent primer of emerging infections for scientists and laypeople alike. Beyond the superb writing, is a detailed look at China’s culture of secrecy in the throes of a global public health crisis”
Link to book: https://www.amazon.com/China-Syndrome-Story-Centurys-Epidemic/dp/0060587237
Preliminary results of how air temperature and humidity influence the transmission of COVID-19.
PDF: High Temperature and High Humidity Reduce the Transmission of COVID-19
Phyloepidemiologic analyses indicated the SARS-CoV-2 source at the Hua Nan market should be imported from other places. The crowded market boosted SARS-CoV-2 rapid circulations in the market and spread it to the whole city in early December 2019.
Link to Study: https://www.researchgate.net/publication/339351990_Decoding_evolution_and_transmissions_of_novel_pneumonia_coronavirus_SARS-CoV-2_using_the_whole_genomic_data