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A quantitative assessment of SARS-CoV-2 bioaerosol production

A quantitative assessment of SARS-CoV-2 bioaerosol production Close contact between individuals has contributed enormously to the sporadic spread of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) across the world. According to the United States Centers for Disease Control and Prevention (CDC), ‘close contact’ is defined as an individual who spent at least 15 minutes, over a 24-hour period, within 2 meters of an individual with coronavirus disease 2019 (COVID-19). This definition of close contact has become widely used in investigative studies on ‘contact’ and determining the average risk of COVID-19 in healthcare settings and communities. Researchers from the Stanford University School of Medicine, however, felt that the empirical basis for this specific time window is limited. In fact, the researchers hypothesized that individual characteristics and actions such as talking may also affect the overall bioaerosol shedding and impact exposure risk over this

COVID-19 deaths jump by 21% in one week, WHO laments

COVID-19 deaths jump by 21% in one week, WHO laments
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