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Oxford University Press - PMC COVID-19 Collection logoLink to Oxford University Press - PMC COVID-19 Collection
. 2020 Aug 5:ciaa1119. doi: 10.1093/cid/ciaa1119

Unique SARS-CoV-2 clusters causing a large COVID-19 outbreak in Hong Kong

Kelvin Kai-Wang To 1,2,, Wan-Mui Chan 1, Jonathan Daniel Ip 1, Allen Wing-Ho Chu 1, Anthony Raymond Tam 3, Raymond Liu 4, Alan Ka-Lun Wu 5, Kwok-Cheung Lung 6, Owen Tak-Yin Tsang 7, Daphne Pui-Ling Lau 7, Wing-Kin To 8, Mike Yat-Wah Kwan 9, Yat-Sun Yau 10, Anthony Chin-Ki Ng 1, Cyril Chik-Yan Yip 2, Kwok-Hung Chan 1, Herman Tse 11, Ivan Fan-Ngai Hung 12, Kwok-Yung Yuen 1,2,
PMCID: PMC7454385  PMID: 32756996

Abstract

After two months of relative quiescence, a large COVID-19 outbreak occurred in Hong Kong in July 2020 after gradual relaxation of social distancing policy. Two unique SARS-CoV-2 phylogenetic clusters have been identified among locally-acquired cases, with most genomes belonging to cluster HK1 which is phylogenetically related to SARS-CoV-2 reported overseas.

Keywords: COVID-19, SARS-CoV-2, outbreak, whole genome sequencing


Articles from Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America are provided here courtesy of Oxford University Press

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