Understanding influenza virus-specific epidemiological properties by analysis of experimental human infections

Epidemiology and Infection
C M LiaoS C Chen

Abstract

This study aimed to estimate the natural history and transmission parameters based on experimental viral shedding and symptom dynamics in order to understand the key epidemiological factors that characterize influenza (sub)type epidemics. A simple statistical algorithm was developed by combining a well-defined mathematical scheme of epidemiological determinants and experimental human influenza infection. Here we showed that (i) the observed viral shedding dynamics mapped successfully the estimated time-profile of infectiousness and (ii) the profile of asymptomatic probability was obtained based on observed temporal variation of symptom scores. Our derived estimates permitted evaluation of relationships between various model-derived and data-based estimations, allowing evaluation of trends proposed previously but not tested fully. As well as providing insights into the dynamics of viral shedding and symptom scores, a more profound understanding of influenza epidemiological parameters and determinants could enhance the viral kinetic studies of influenza during infection in the respiratory tracts of experimentally infected individuals.

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Citations

Jun 12, 2013·PloS One·Ayaz HyderBrian Leung
Jul 8, 2015·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Andreas Handel, Pejman Rohani
Nov 2, 2014·Epidemiology and Infection·S C ChenC M Liao

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