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

Clin Infect Dis. 2020 Aug 5;ciaa1119. doi: 10.1093/cid/ciaa1119. Online ahead of print.


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.