TY - JOUR
T1 - Towards improved social distancing guidelines
T2 - Space and time dependence of virus transmission from speech-driven aerosol transport between two individuals
AU - Yang, Fan
AU - Pahlavan, Amir A.
AU - Mendez, Simon
AU - Abkarian, Manouk
AU - Stone, Howard A.
N1 - Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/12/1
Y1 - 2020/12/1
N2 - It is now recognized that aerosol transport contributes to the transmission of the SARS-CoV-2 virus. Here, we improve existing social distancing guidelines for airborne pathogens, which are typically given in terms of distance with vague statements about contact times. Also, estimates of inhalation of virus in a contaminated space usually assume a well-mixed environment, which is realistic for some, but not all, situations. In particular, we consider a local casual interaction of an infected individual and a susceptible individual, both maskless, account for the air flow and aerosol transport characteristics of speaking and breathing in a poorly ventilated space, and propose social distancing guidelines that involve both space and contact time, based on a conservative model of fluid dynamics of the interactions.
AB - It is now recognized that aerosol transport contributes to the transmission of the SARS-CoV-2 virus. Here, we improve existing social distancing guidelines for airborne pathogens, which are typically given in terms of distance with vague statements about contact times. Also, estimates of inhalation of virus in a contaminated space usually assume a well-mixed environment, which is realistic for some, but not all, situations. In particular, we consider a local casual interaction of an infected individual and a susceptible individual, both maskless, account for the air flow and aerosol transport characteristics of speaking and breathing in a poorly ventilated space, and propose social distancing guidelines that involve both space and contact time, based on a conservative model of fluid dynamics of the interactions.
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U2 - 10.1103/PhysRevFluids.5.122501
DO - 10.1103/PhysRevFluids.5.122501
M3 - Article
AN - SCOPUS:85097587093
SN - 2469-990X
VL - 5
JO - Physical Review Fluids
JF - Physical Review Fluids
IS - 12
M1 - 122501
ER -