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The transmission modes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) remain controversial. At the emerging stage of the pandemic, many countries implemented high-level precautions, including airborne and contact precautions, to prevent the spread from patients to health care professionals (HCPs). An emerging understanding of SARS-CoV-2 epidemiology, which is primarily transmitted from person to person through droplets, led to recommendations for droplet precautions to care for patients hospitalized with coronavirus disease 2019 (COVID-19). However, separating transmission dynamics into the dichotomy of droplet vs airborne transmission is probably simplistic. In some circumstances, aerosol particles (<5 μm in diameter) may be produced by individuals with infection and travel more than the 1.50 m commonly used to define transmission routes and contaminate surfaces further away.Subscribe to Comments