Inferring Incidence of Unreported SARS-CoV-2 Infections Using Seroprevalence of Open Reading Frame 8 Antigen, Hong Kong
- Resource Type
- article
- Authors
- Shi Zhao; Chris Ka Pun Mok; Yun Sang Tang; Chunke Chen; Yuanxin Sun; Ka Chun Chong; David S.C. Hui
- Source
- Emerging Infectious Diseases, Vol 30, Iss 2, Pp 325-328 (2024)
- Subject
- COVID-19
viruses
SARS-CoV-2 Omicron variant
ORF8 antigen
infection attack rate
respiratory infections
Medicine
Infectious and parasitic diseases
RC109-216
- Language
- English
- ISSN
- 1080-6040
1080-6059
We tested seroprevalence of open reading frame 8 antigens to infer the number of unrecognized SARS-CoV-2 Omicron infections in Hong Kong during 2022. We estimate 33.6% of the population was infected, 72.1% asymptomatically. Surveillance and control activities during large-scale outbreaks should account for potentially substantial undercounts.