The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has evolved many high-risk variants, resulting in repeated COVID-19 waves over the past years. Therefore, accurate early warning of high-risk variants is vital for epidemic prevention and control. However, detecting high-risk variants through experimental and epidemiological research is time-consuming and often lags behind the emergence and spread of these variants. In this study, HiRisk-Detector a machine learning algorithm based on haplotype network, is developed for computationally early detecting high-risk SARS-CoV-2 variants. Leveraging over 7.6 million high-quality and complete SARS-CoV-2 genomes and metadata, the effectiveness, robustness, and generalizability of HiRisk-Detector are validated. First, HiRisk-Detector is evaluated on actual empirical data, successfully detecting all 13 high-risk variants, preceding World Health Organization announcements by 27 days on average. Second, its robustness is tested by reducing sequencing intensity to one-fourth, noting only a minimal delay of 3.8 days, demonstrating its effectiveness. Third, HiRisk-Detector is applied to detect risks among SARS-CoV-2 Omicron variant sub-lineages, confirming its broad applicability and high ROC-AUC and PR-AUC performance. Overall, HiRisk-Detector features powerful capacity for early detection of high-risk variants, bearing great utility for any public emergency caused by infectious diseases or viruses.
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Grants
2023YFC3041500/Ministry of Science and Technology of the People's Republic of China
ANSO-CR-KP-2022-09/Alliance of National and International��Science Organizations for the Belt��and��Road Regions
Z211100002121006/Beijing Municipal Science & Technology Commission, Administrative Commission of Zhongguancun Science Park
2021YFF0703703/National Key Research & Development Program of China
2023YFC2604400/National Key Research & Development Program of China
XDB38030200/Chinese Academy of Sciences
Y2021038/Chinese Academy of Sciences
32170678/National Natural Science Foundation of China
32270718/National Natural Science Foundation of China