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The high transmission and mortality rates of this virus, and the unavailability of a vaccine or treatment, resulted in the decision of multiple governments to enact measures of social distancing. Such measures can reduce the exposure to bioaerosols, which can result in pathogen deposition in the respiratory tract of the host causing disease and an immunological response. Thus, it is important to consider the validity of the proposal for keeping a distance of at least 2\u00a0m from other persons to avoid the spread of COVID\u201019. This work reviews the effect of aerodynamic diameter (size) of particles carrying RNA copies of severe acute respiratory syndrome coronavirus 2 (SARS\u2010CoV\u20102). A SARS\u2010CoV\u20102 carrier person talking, sneezing or coughing at distance of 2\u00a0m can still provide a pathogenic bioaerosol load with submicron particles that remain viable in air for up to 3\u00a0h for exposure of healthy persons near and far from the source in a stagnant environment. The deposited bioaerosol creates contaminated surfaces, which if touched can act as a path to introduce the pathogen by mouth, nose or eyes and cause disease.<\/jats:p>","DOI":"10.1002\/hpm.3095","type":"journal-article","created":{"date-parts":[[2020,12,10]],"date-time":"2020-12-10T01:15:20Z","timestamp":1607562920000},"page":"257-266","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":79,"title":["An overview of the effect of bioaerosol size in coronavirus disease 2019 transmission"],"prefix":"10.1002","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6730-7766","authenticated-orcid":false,"given":"Marcelo I.","family":"Guzman","sequence":"first","affiliation":[{"name":"Department of Chemistry University of Kentucky  Lexington Kentucky USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,12,8]]},"reference":[{"key":"e_1_2_10_2_1","unstructured":"WHO.Coronavirus Disease (COVID\u201019) Pandemic.https:\/\/www.who.int\/emergencies\/diseases\/novel-coronavirus-2019. 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