A non-peer-reviewed article focused on the aerosol transmission of the COVID-19 virus. The article was shared in April 2020 on a friends' Whatsapp group which has several medical personnel in it. The article assesses a small sample group (35 aeresol samples) and concludes that "room ventilation, open space, proper use and disinfection of toilet can effectively limit aeresol transmision of SARS-CoV-2."
The article was shared by a doctor who is a member of the Whatsapp group. Members were continually expressing concern about the spread of the disease and for the health of colleagues in the group. A couple of them had gone into quarantine after exposure to the virus among work colleagues one of the group members is a nurse working in the US and had already treated multiple patients. The article was part of the continued sharing of technical or media information around COVID-19 within the group.
https://www.biorxiv.org/content/10.1101/2020.03.08.982637v1.full.pdf, 10 March 2020, "Article: Aerodynamic characteristics and RNA concentration of SARS-CoV-2 Aeresol in Wuhan", contributed by Wambui Wamunyu , Research Data Share, Platform for Experimental Collaborative Ethnography, last modified 11 June 2020, accessed 19 August 2022. https://www.researchdatashare.org/content/article-aerodynamic-characteristics-and-rna-concentration-sars-cov-2-aeresol-wuhan