Alliance for Pandemic Preparedness

September 28, 2020

Speech Can Produce Jet-like Transport Relevant to Asymptomatic Spreading of Virus

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  • The act of speaking, particularly during a conversation, can create air currents that can transport exhaled breath in a directed pattern out to 2 meters (6 feet), and potentially further, during a 30 second conversation.

Abkarian et al. (Sept 25, 2020). Speech Can Produce Jet-like Transport Relevant to Asymptomatic Spreading of Virus. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2012156117