A New Approach for Respiratory Droplet Trajectory: Implications for Viral and Bacterial Disease Transmission in Emergency Departments

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dc.contributor.authorAydin, Ismail Erkan
dc.contributor.authorAydin, Baran
dc.contributor.authorAydin Savas, Seckin
dc.contributor.authorAydin, Mehmet
dc.date.accessioned2026-01-24T12:20:43Z
dc.date.available2026-01-24T12:20:43Z
dc.date.issued2025
dc.departmentAlanya Alaaddin Keykubat Üniversitesi
dc.description.abstractBackground The objective of this study is to devise a simplified approach for estimating respiratory particle trajectory to avoid infection in gathering places of emergency departments. Methods To the authors’ knowledge, no sufficient/ obvious data exist on lateral routes of disease transmission through respiratory droplets along the x-axis. The present study establishes a preliminary baseline approach based on the upper pharynx-mouth geometry for lateral social distancing to protect susceptible persons from the droplets of an infected person. An enhanced version of ART (Aydin’s Research Team) model has been employed as a supplementary tool of Stokes’s law for quantification of motion dynamics of the virus/ bacterium-laden droplets in public indoor places. Results A range of droplet diameters varying from 1 ?m to 2000 ?m were considered in this study. The droplets with a diameter of ? 22.5 ?m can completely evaporate during settling and droplet nuclei can remain in the air for extended periods. An individual Influenza virus can stay airborne for 34.4 days, while a single Streptococcus bacterium remains suspended for 18.6 hours. The proper social distancing between infected and healthy persons should be about 2.9 and 0.9 m longitudinally, and 0.45 and 0.15 m laterally based on the novel aspects of the present study for sneezing/coughing and breathing/talking, respectively. The trajectory of respiratory particles in the streamwise and radial directions resembles the shape of a truncated cone due to the upper pharynx-mouth relationship. Conclusion The outcomes of this study can help further understanding of respiratory particle trajectory, thereby improving measures to mitigate disease transmission. © 2025 Tottori University Medical Press.
dc.identifier.doi10.33160/yam.2025.08.004
dc.identifier.endpage208
dc.identifier.issn0513-5710
dc.identifier.issue3
dc.identifier.scopus2-s2.0-105014776943
dc.identifier.scopusqualityQ2
dc.identifier.startpage197
dc.identifier.urihttps://doi.org/10.33160/yam.2025.08.004
dc.identifier.urihttps://hdl.handle.net/20.500.12868/4540
dc.identifier.volume68
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTottori University Faculty of Medicine
dc.relation.ispartofYonago Acta Medica
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_Scopus_20260121
dc.subjectdroplet evaporation
dc.subjectindoor environment
dc.subjectlateral trajectory
dc.subjectmicrobial spread
dc.subjectStokes and ART models
dc.titleA New Approach for Respiratory Droplet Trajectory: Implications for Viral and Bacterial Disease Transmission in Emergency Departments
dc.typeArticle

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