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DTSTART:19960101T000000 END:STANDARD BEGIN:STANDARD TZNAME:GMT TZOFFSETFROM:+0100 TZOFFSETTO:+0000 DTSTART:19961027T020000 RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260427T184217Z DTSTART;VALUE=DATE-TIME:20230228T170000 DTEND;VALUE=DATE-TIME:20230228T180000 SUMMARY:YRM W8 - Alicia Gill on Bayesian Inference of the Reproduction Nu mber from Epidemic and Genomic Data TZID:Europe/London UID:20230228-8a1785d7857d17ea018582ef4c797e12@warwick.ac.uk CREATED:20230227T072202Z DESCRIPTION:Abstract: The reproduction number R(t) represents the average number of new infections caused by a single infected individual at time t. Estimation of the reproduction number R(t) is of vital importance du ring an epidemic outbreak\, for example\, to decide whether to implement control measures and to determine their effects once implemented. Typic ally\, the reproduction number R(t) is inferred using only epidemic data \, such as prevalence per day. However\, prevalence data is often noisy\ , partially observed and biased. Genomic data is therefore increasingly being used to understand infectious disease epidemiology. We take a Baye sian approach to this problem to find the trajectory of R(t) given a dat ed phylogeny and partial prevalence data using particle Markov chain Mon te Carlo methods. We have implemented a particle marginal Metropolis--Ha stings algorithm with backward simulation to jointly infer the hyper-par ameters of the model\, the latent epidemic and the trajectory of R(t). T he performance of this approach is analysed using simulated data. These simulations show that incorporating genomic data as well as epidemic dat a improves inference in a variety of cases. LOCATION: CATEGORIES: LAST-MODIFIED:20230227T072202Z ORGANIZER;CN=Claudia Viaro: END:VEVENT END:VCALENDAR