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• W2884479317 abstract "Recent epidemics have entailed global discussions on revamping epidemic control and prevention approaches. A general consensus is that all sources of data should be embraced to improve epidemic preparedness. As a disease transmission is inherently governed by individual-level responses, pathogen dynamics within infected hosts posit high potentials to inform population-level phenomena. We propose a multiscale approach showing that individual dynamics were able to reproduce population-level observations.Using experimental data, we formulated mathematical models of pathogen infection dynamics from which we simulated mechanistically its transmission parameters. The models were then embedded in our implementation of an age-specific contact network that allows to express individual differences relevant to the transmission processes. This approach is illustrated with an example of Ebola virus (EBOV).The results showed that a within-host infection model can reproduce EBOV's transmission parameters obtained from population data. At the same time, population age-structure, contact distribution and patterns can be expressed using network generating algorithm. This framework opens a vast opportunity to investigate individual roles of factors involved in the epidemic processes. Estimating EBOV's reproduction number revealed a heterogeneous pattern among age-groups, prompting cautions on estimates unadjusted for contact pattern. Assessments of mass vaccination strategies showed that vaccination conducted in a time window from five months before to one week after the start of an epidemic appeared to strongly reduce epidemic size. Noticeably, compared to a non-intervention scenario, a low critical vaccination coverage of 33% cannot ensure epidemic extinction but could reduce the number of cases by ten to hundred times as well as lessen the case-fatality rate.Experimental data on the within-host infection have been able to capture upfront key transmission parameters of a pathogen; the applications of this approach will give us more time to prepare for potential epidemics. The population of interest in epidemic assessments could be modelled with an age-specific contact network without exhaustive amount of data. Further assessments and adaptations for different pathogens and scenarios to explore multilevel aspects in infectious diseases epidemics are underway." @default.
• W2884479317 created "2018-08-03" @default.
• W2884479317 creator A5008371412 @default.
• W2884479317 creator A5051418152 @default.
• W2884479317 creator A5081429963 @default.
• W2884479317 date "2018-07-17" @default.
• W2884479317 modified "2023-10-14" @default.
• W2884479317 title "High-resolution epidemic simulation using within-host infection and contact data" @default.
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• W2884479317 doi "https://doi.org/10.1186/s12889-018-5709-x" @default.
• W2884479317 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6050668" @default.
• W2884479317 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30016958" @default.
• W2884479317 hasPublicationYear "2018" @default.
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