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. 2022 Sep 17;29(6):taac049.
doi: 10.1093/jtm/taac049.

Superspreading potential of COVID-19 outbreak seeded by Omicron variants of SARS-CoV-2 in Hong Kong

Zihao Guo  1 , Shi Zhao  1 , Shui Shan Lee  1   2 , Chris Ka Pun Mok  1   3 , Ngai Sze Wong  1   2 , Jingxuan Wang  1 , Katherine Min Jia  4 , Maggie Haitian Wang  1 , Carrie Ho Kwan Yam  1   5 , Tsz Yu Chow  1   5 , Ka Chun Chong  1   5 , Eng Kiong Yeoh  1   5
Affiliations

Superspreading potential of COVID-19 outbreak seeded by Omicron variants of SARS-CoV-2 in Hong Kong

Zihao Guo et al. J Travel Med. .

Abstract

Using two early transmission chains in Hong Kong, the estimated R and k were 1.34 (95%CrI: 0.94-2.19) and 0.33 (95%CrI: 0.17-0.62) respectively, inferring 20.3% (95%CrI: 12.7%-29.6%) cases were responsible for 80% of the transmissions of the Omicron epidemic. Compared with Omicron BA.1, Omicron BA.2 had a greater superspreading potential.

Keywords: Omicron variants; SARS-CoV-2; superspreading events; transmission heterogeneity.

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