This Special Issue mainly focuses on investigating and reinforcing the role of aerosol transmission of SARS-CoV-2 as the predominant driver of the COVID-19 pandemic. Both modeling and experimental methods are widely used.

In particular, various studies have examined the potential for virus transmission in a variety of hospital (INA-21–11–630.R1; INA-21–04–235.R2; INA-21–04–199.R1) and non-hospital, community-based settings—including people's own homes (INA-22–01–037; INA-21–12–687), cars and taxis (INA-21–09–507.R1; INA-22–01–023.R1), subway (INA-21–08–430.R1) and surface train (INA-22–01–018) carriages, cable cars (INA-22–01–025), classrooms (INA-22–01–014; INA-21–11–610.R1), courtrooms (INA-21–04–227.R1), and even an orchestral setting (INA-21–12–663.R1).Several papers also examine the impact of various mitigation strategies, including masks (INA-21–03–147.R1; INA-21–09–493.R2; INA-21–08–465.R1; INA-21–08–430.R1), social distancing (INA-21–11–656.R1; INA-21–03–147.R1; INA-21–09–493.R2; INA-21–08–465.R1), dividing screens (INA-21–06–361.R1), portable air filters/cleaners/purifiers (INA-22–01–037; INA-22–01–014), and ventilation (INA-21–09–493.R2; INA-21–08–465.R1; INA-21–08–430.R1).

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