Abstract:At the onset of the COVID-19 pandemic, various non-pharmaceutical interventions aimed to reduce infection levels, leading to multiple phases of transmission. The disease reproduction number, Rt, quantifies transmissibility and is central to evaluating these interventions. This article discusses hierarchical stochastic epidemic models with piece-wise constant Rt, suitable for capturing distinct epidemic phases and estimating disease magnitude. The timing and scale of Rt changes are inferred from data, while the… Show more
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