The Effect of âWuhan Closureâ? On the COVID-19 Pandemic in China

Jian Wang, Wei Shao, Yan Yan, Junseok Kim

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, we analyzed daily records of newly diagnosed cases in Wuhan, Hubei excluding Wuhan (HEW), and China excluding Hubei (CEH) to investigate the impact of the new coronavirus outbreak in Wuhan on cities around it and throughout China. We used multifractal detrended cross-correlation analysis (MF-DXA) method to investigate the correlations between the daily number of patients in Wuhan and HEW as well as in Wuhan and CEH. We concluded that the cross-correlations between the daily number of patients in Wuhan and HEW were higher than those between the daily number of patients in Wuhan and CEH because the multifractal features of Wuhan and HEW are greater than those of Wuhan and CEH. We also found that the "Wuhan closure"conducted on January 23 resulted in a decrease in cross-correlations between Wuhan and CEH.

Original languageEnglish
Article number2150052
JournalFluctuation and Noise Letters
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • COVID-19
  • generalized Hurst exponent
  • MF-DXA

ASJC Scopus subject areas

  • Mathematics(all)
  • Physics and Astronomy(all)

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