Results 11 to 20 of about 2,012,425 (246)

Assessing the role of contact tracing in a suspected H7N2 influenza A outbreak in humans in Wales [PDF]

open access: yesBMC Infectious Diseases, 2010
Background The detailed analysis of an outbreak database has been undertaken to examine the role of contact tracing in controlling an outbreak of possible avian influenza in humans. The outbreak, initiating from the purchase of infected domestic poultry,
Salmon Roland   +5 more
doaj   +5 more sources

Factors Affecting COVID-19 Transmission and Modelling of Close Contact Tracing Strategies

open access: yesIranian Journal of Public Health, 2021
Background: Close contact tracing is an essential measure that countries are applying to combat the epidemic of COVID-19. The purpose of contact tracing is to rapidly identify potentially infected individuals and prevent further spread of the disease. In
Shahram Yazdani   +3 more
doaj   +1 more source

Implication of backward contact tracing in the presence of overdispersed transmission in COVID-19 outbreaks [version 2; peer review: 2 approved]

open access: yesWellcome Open Research, 2021
Introduction: Contact tracing has the potential to control outbreaks without the need for stringent physical distancing policies, e.g. civil lockdowns. Unlike forward contact tracing, backward contact tracing identifies the source of newly detected cases.
Akira Endo   +7 more
doaj   +1 more source

Timeliness of contact tracing among flight passengers during the COVID-19 epidemic in Vietnam

open access: yesBMC Infectious Diseases, 2021
Background International air travel plays an important role in the global spread of SARS-CoV-2, and tracing of close contacts is an integral part of the public health response to COVID-19.
Thai Quang Pham   +17 more
doaj   +1 more source

Key performance indicators of COVID-19 contact tracing in Belgium from September 2020 to December 2021.

open access: yesPLoS ONE, 2023
The goal of tracing, testing, and quarantining contacts of infected individuals is to contain the spread of infectious diseases, a strategy widely used during the COVID-19 pandemic. However, limited research exists on the effectiveness of contact tracing,
Cécile Kremer   +6 more
doaj   +1 more source

On the contact tracing for COVID-19: A simulation study

open access: yesEpidemics, 2023
Background:: Contact tracing is one of the most effective non-pharmaceutical interventions in the COVID-19 pandemic. This study uses a multi-agent model to investigate the impact of four types of contact tracing strategies to prevent the spread of COVID ...
Luděk Berec   +11 more
doaj   +1 more source

Implication of backward contact tracing in the presence of overdispersed transmission in COVID-19 outbreaks [version 1; peer review: 2 approved]

open access: yesWellcome Open Research, 2020
Introduction: Contact tracing has the potential to control outbreaks without the need for stringent physical distancing policies, e.g. civil lockdowns. Unlike forward contact tracing, backward contact tracing identifies the source of newly detected cases.
Akira Endo   +7 more
doaj   +1 more source

Contact tracing strategies in heterogeneous populations [PDF]

open access: yes, 2006
Contact tracing is a well-established disease control measure that seeks to uncover cases by following chains of infection. This paper examines mathematical models of both single-step and iterative contact tracing schemes and analyses the ability of ...
Eames, KTD, Eames, Ken T. D.
core   +1 more source

Optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing apps

open access: yesPhysical Review Research, 2022
The ongoing COVID-19 pandemic is the first epidemic in human history in which digital contact tracing has been deployed at a global scale. Tracking and quarantining all the contacts of individuals who test positive for a virus can help slow down an ...
Aleix Bassolas   +4 more
doaj   +1 more source

Impact of contact tracing on COVID-19 mortality: An impact evaluation using surveillance data from Colombia.

open access: yesPLoS ONE, 2021
BackgroundContact tracing is a crucial part of the public health surveillance toolkit. However, it is labor-intensive and costly to carry it out. Some countries have faced challenges implementing contact tracing, and no impact evaluations using empirical
Andres I Vecino-Ortiz   +3 more
doaj   +1 more source

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