Stockholm university

Fanny BergströmPhd Student

About me

I am a PhD student at the division of Computational Mathematics under the supervision of Tom Britton. My research is focused on the methodological development of computational methods for epidemics. Currently, I am working on quantifying the effect of the COVID-19 vaccine programme in Sweden.

Teaching

ESPIDAM Stochastic epidemic models with inference : summer school 2024

SISMID Stochastic epidemic models with inference: summer school 2023 and 2024.

Statistical Data Processing (MT4007) fall semester 2020 and 2021.

Introduction to Machine Learning (DA4004) spring semester 2021. 

Publications

A selection from Stockholm University publication database

  • Bayesian nowcasting with leading indicators applied to COVID-19 fatalities in Sweden

    2022. Fanny Bergström (et al.). PloS Computational Biology 18 (12)

    Article

    The real-time analysis of infectious disease surveillance data is essential in obtaining situational awareness about the current dynamics of a major public health event such as the COVID-19 pandemic. This analysis of e.g., time-series of reported cases or fatalities is complicated by reporting delays that lead to under-reporting of the complete number of events for the most recent time points. This can lead to misconceptions by the interpreter, for instance the media or the public, as was the case with the time-series of reported fatalities during the COVID-19 pandemic in Sweden. Nowcasting methods provide real-time estimates of the complete number of events using the incomplete time-series of currently reported events and information about the reporting delays from the past. In this paper we propose a novel Bayesian nowcasting approach applied to COVID-19-related fatalities in Sweden. We incorporate additional information in the form of time-series of number of reported cases and ICU admissions as leading signals. We demonstrate with a retrospective evaluation that the inclusion of ICU admissions as a leading signal improved the nowcasting performance of case fatalities for COVID-19 in Sweden compared to existing methods.

    Read more about Bayesian nowcasting with leading indicators applied to COVID-19 fatalities in Sweden

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