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Estimating the serial intervals of SARS-CoV-2 Omicron BA.4, BA.5, and BA.2.12.1 variants in Hong Kong.
Guo, Zihao; Zhao, Shi; Yam, Carrie Ho Kwan; Li, Conglu; Jiang, Xiaoting; Chow, Tsz Yu; Chong, Ka Chun; Yeoh, Eng Kiong.
  • Guo Z; JC School of Public Health and Primary Care, Faculty of Medicine Chinese University of Hong Kong Hong Kong China.
  • Zhao S; JC School of Public Health and Primary Care, Faculty of Medicine Chinese University of Hong Kong Hong Kong China.
  • Yam CHK; Centre for Health Systems and Policy Research, Faculty of Medicine Chinese University of Hong Kong Hong Kong China.
  • Li C; JC School of Public Health and Primary Care, Faculty of Medicine Chinese University of Hong Kong Hong Kong China.
  • Jiang X; Centre for Health Systems and Policy Research, Faculty of Medicine Chinese University of Hong Kong Hong Kong China.
  • Chow TY; JC School of Public Health and Primary Care, Faculty of Medicine Chinese University of Hong Kong Hong Kong China.
  • Chong KC; JC School of Public Health and Primary Care, Faculty of Medicine Chinese University of Hong Kong Hong Kong China.
  • Yeoh EK; JC School of Public Health and Primary Care, Faculty of Medicine Chinese University of Hong Kong Hong Kong China.
Influenza Other Respir Viruses ; 17(2): e13105, 2023 02.
Article in English | MEDLINE | ID: covidwho-2261602
ABSTRACT
Empirical evidence on the epidemiological characteristics of the emerged SARS-CoV-2 variants could shed light on the transmission potential of the virus and strategic outbreak control planning. In this study, by using contact tracing data collected during an Omicron-predominant epidemic phase in Hong Kong, we estimated the mean serial interval of SARS-CoV-2 Omicron BA.4, BA.5, and BA.2.12.1 variants at 2.8 days (95% credible interval [CrI] 1.5, 6.7), 2.7 days (95% CrI 2.1, 3.6), and 4.4 days (95% CrI 2.6, 7.5), respectively, with adjustment for right truncation and sampling bias. The short serial interval for the current circulating variant indicated that outbreak mitigations through contact tracing and case isolation would be quite challenging.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Type of study: Observational study Topics: Variants Limits: Humans Country/Region as subject: Asia Language: English Journal: Influenza Other Respir Viruses Journal subject: Virology Year: 2023 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 Type of study: Observational study Topics: Variants Limits: Humans Country/Region as subject: Asia Language: English Journal: Influenza Other Respir Viruses Journal subject: Virology Year: 2023 Document Type: Article