Aerosolized Pathogens and Human Health: Transmission Dynamics in Urban Environments

Shivani Tomar; Harsha Sharma

doi:10.71097/IJSAT.v16.i2.6001

Aerosolized Pathogens and Human Health: Transmission Dynamics in Urban Environments

Author(s)	Shivani Tomar, Harsha Sharma
Country	India
Abstract	Urban environments, with their dense populations and complex infrastructure, present unique challenges, and opportunities for understanding the transmission dynamics of aerosolized pathogens. This study explores how pathogens suspended in aerosols contribute to disease spread in Urban settings, emphasizing respiratory infections such as influenza, tuberculosis, and COVID-19. Urban factors—such as population density, indoor crowding, public transportation, ventilation systems, and socio-economic disparities—significantly influence the generation, dispersion, and inhalation of infectious aerosols. We synthesize recent research across epidemiology, environmental science, and urban planning to characterize how aerosolized pathogens behave in real-world urban conditions. Special attention is given to environmental determinants such as air flow patterns, temperature, humidity, and pollution, which can enhance pathogen survival and transmission. Human behaviour—ranging from mobility patterns to mask-wearing and hygiene practices—also shapes transmission trajectories. The review highlights case studies from major cities worldwide, comparing outbreak patterns and mitigation outcomes. We discuss emerging technologies for detecting airborne pathogens and modelling their spread in complex urban microenvironments. These include sensor networks, computational fluid dynamics, and data-driven predictive modelling. Furthermore, the paper evaluates the effectiveness of public health interventions such as ventilation improvements, air purification, and urban design strategies aimed at reducing transmission risk. This research underscores the need for interdisciplinary collaboration and targeted urban health policies that incorporate airborne transmission science into public health planning. Ultimately, adapting urban systems to minimize the risk of aerosolized pathogen spread will play a critical role in safeguarding human health in the increasingly urbanized world.
Keywords	Aerosolized pathogens, Pathogen dispersion, Public health, Respiratory infections, Urban air quality, Urban population density.
Published In	Volume 16, Issue 2, April-June 2025
Published On	2025-06-06
DOI	https://doi.org/10.71097/IJSAT.v16.i2.6001
Short DOI	https://doi.org/g9pz62

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Aerosolized Pathogens and Human Health: Transmission Dynamics in Urban Environments

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