Estimating the time-varying effective reproduction number via Cycle Threshold-based Transformer.

Monitoring the spread of infectious disease is essential to design and adjust the interventions timely for the prevention of the epidemic outbreak and safeguarding the public health. The governments have generally adopted the incidence-based statistical method to estimate the time-varying effective...

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Main Authors: Xin-Yu Zhang, Lan-Lan Yu, Wei-Yi Wang, Gui-Quan Sun, Jian-Cheng Lv, Tao Zhou, Quan-Hui Liu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-12-01
Series:PLoS Computational Biology
Online Access:https://doi.org/10.1371/journal.pcbi.1012694
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author Xin-Yu Zhang
Lan-Lan Yu
Wei-Yi Wang
Gui-Quan Sun
Jian-Cheng Lv
Tao Zhou
Quan-Hui Liu
author_facet Xin-Yu Zhang
Lan-Lan Yu
Wei-Yi Wang
Gui-Quan Sun
Jian-Cheng Lv
Tao Zhou
Quan-Hui Liu
author_sort Xin-Yu Zhang
collection DOAJ
description Monitoring the spread of infectious disease is essential to design and adjust the interventions timely for the prevention of the epidemic outbreak and safeguarding the public health. The governments have generally adopted the incidence-based statistical method to estimate the time-varying effective reproduction number Rt and evaluate the transmission ability of epidemics. However, this method exhibits biases arising from the reported incidence data and assumes the generation interval distribution which is not available at the early stage of epidemic. Recent studies showed that the viral loads characterized by cycle threshold (Ct) of the infected populations evolving throughout the course of epidemic and providing a possibility to infer the epidemic trajectory. In this work, we propose the Cycle Threshold-based Transformer (Ct-Transformer) to estimate Rt. We find the supervised learning of Ct-Transformer outperforms the traditional incidence-based statistic and Ct-based Rt estimating methods, and more importantly Ct-Transformer is robust to the detection resources. Further, we apply the proposed model to self-supervised pre-training tasks and obtain excellent fine-tuned performance, which attains comparable performance with the supervised Ct-Transformer, verified by both the synthetic and real-world datasets. We demonstrate that the Ct-based deep learning method can improve the real-time estimates of Rt, enabling more easily adapted to the track of the newly emerged epidemic.
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institution Kabale University
issn 1553-734X
1553-7358
language English
publishDate 2024-12-01
publisher Public Library of Science (PLoS)
record_format Article
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spelling doaj-art-3ad7d2b2907340da90a4406eb7a342872025-01-17T05:30:56ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582024-12-012012e101269410.1371/journal.pcbi.1012694Estimating the time-varying effective reproduction number via Cycle Threshold-based Transformer.Xin-Yu ZhangLan-Lan YuWei-Yi WangGui-Quan SunJian-Cheng LvTao ZhouQuan-Hui LiuMonitoring the spread of infectious disease is essential to design and adjust the interventions timely for the prevention of the epidemic outbreak and safeguarding the public health. The governments have generally adopted the incidence-based statistical method to estimate the time-varying effective reproduction number Rt and evaluate the transmission ability of epidemics. However, this method exhibits biases arising from the reported incidence data and assumes the generation interval distribution which is not available at the early stage of epidemic. Recent studies showed that the viral loads characterized by cycle threshold (Ct) of the infected populations evolving throughout the course of epidemic and providing a possibility to infer the epidemic trajectory. In this work, we propose the Cycle Threshold-based Transformer (Ct-Transformer) to estimate Rt. We find the supervised learning of Ct-Transformer outperforms the traditional incidence-based statistic and Ct-based Rt estimating methods, and more importantly Ct-Transformer is robust to the detection resources. Further, we apply the proposed model to self-supervised pre-training tasks and obtain excellent fine-tuned performance, which attains comparable performance with the supervised Ct-Transformer, verified by both the synthetic and real-world datasets. We demonstrate that the Ct-based deep learning method can improve the real-time estimates of Rt, enabling more easily adapted to the track of the newly emerged epidemic.https://doi.org/10.1371/journal.pcbi.1012694
spellingShingle Xin-Yu Zhang
Lan-Lan Yu
Wei-Yi Wang
Gui-Quan Sun
Jian-Cheng Lv
Tao Zhou
Quan-Hui Liu
Estimating the time-varying effective reproduction number via Cycle Threshold-based Transformer.
PLoS Computational Biology
title Estimating the time-varying effective reproduction number via Cycle Threshold-based Transformer.
title_full Estimating the time-varying effective reproduction number via Cycle Threshold-based Transformer.
title_fullStr Estimating the time-varying effective reproduction number via Cycle Threshold-based Transformer.
title_full_unstemmed Estimating the time-varying effective reproduction number via Cycle Threshold-based Transformer.
title_short Estimating the time-varying effective reproduction number via Cycle Threshold-based Transformer.
title_sort estimating the time varying effective reproduction number via cycle threshold based transformer
url https://doi.org/10.1371/journal.pcbi.1012694
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