Tracing contacts to evaluate the transmission of COVID-19 from highly exposed individuals in public transportation

  title={Tracing contacts to evaluate the transmission of COVID-19 from highly exposed individuals in public transportation},
  author={Caio Ponte and H. Carmona and Elys Bezerra Oliveira and Carlos Caminha and Ant{\^o}nio Silva Lima Neto and Jos{\'e} Mar{\'i}a Andrade and Vasco Furtado},
  journal={Scientific Reports},
We investigate, through a data-driven contact tracing model, the transmission of COVID-19 inside buses during distinct phases of the pandemic in a large Brazilian city. From this microscopic approach, we recover the networks of close contacts within consecutive time windows. A longitudinal comparison is then performed by upscaling the traced contacts with the transmission computed from a mean-field compartmental model for the entire city. Our results show that the effective reproduction numbers… 

The Urban Environment and Public Health: Associations Between COVID-19 Cases and Urban Factors in Semarang City, Central Java, Indonesia

UN-Habitat noted that COVID-19 cases were disproportionately found in urban areas. A question arises as to what urban factors are related and how they are related. Therefore, this study aims to

A frontal air intake may improve the natural ventilation in urban buses

In this report we analyze the air flow across the open windows (natural ventilation) of an urban bus model and the consequent dispersion of aerosols emitted in the passengers area. The methods



Analysing the link between public transport use and airborne transmission: mobility and contagion in the London underground

A link between public transport use and infectious diseases transmission is suggested and could be used to inform the development of non-pharmacological interventions that can act on preventing instead of curing infections and are, potentially, more cost-effective.

The risk of COVID-19 transmission in train passengers: an epidemiological and modelling study

  • Maogui HuHui Lin S. Lai
  • Medicine
    Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
  • 2020
COVID-19 has a high transmission risk among train passengers, but this risk shows significant differences with co-travel time and seat location, and measures should be taken to reduce the risk of transmission.

The effect of human mobility and control measures on the COVID-19 epidemic in China

Real-time mobility data from Wuhan and detailed case data including travel history are used to elucidate the role of case importation in transmission in cities across China and to ascertain the impact of control measures.

Disease transmission through expiratory aerosols on an urban bus

It was found that well fitted surgical masks, when worn by both infected and susceptible passengers, can nearly eliminate the transmission of the disease.

Virus spread versus contact tracing: Two competing contagion processes

A compartmental model that couples the dynamics of the infection with the contact tracing and isolation of cases is proposed and an analytical expression for the effective case reproduction number is developed that reveals the role of contact tracing in the mitigation and suppression of the epidemics.

Evidence of Long-Distance Droplet Transmission of SARS-CoV-2 by Direct Air Flow in a Restaurant in Korea

Background The transmission mode of severe acute respiratory syndrome coronavirus 2 is primarily known as droplet transmission. However, a recent argument has emerged about the possibility of

Superspreading k-cores at the center of COVID-19 pandemic persistence

A large-scale contact tracing network analysis is implemented to find the optimal quarantine protocol to dismantle the chain of transmission of coronavirus with minimal disruptions to society and demonstrates the effectiveness of an optimal tracing strategy to halt the pandemic.

Community Outbreak Investigation of SARS-CoV-2 Transmission Among Bus Riders in Eastern China.

Individuals who rode a bus to a worship event with a patient with COVID-19 had a higher risk of SARS-CoV-2 infection than individuals who rode another bus to the same event, suggesting airborne spread of the virus seems likely to have contributed to the high attack rate in the exposed bus.