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.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10826773 | PMC |
| http://dx.doi.org/10.3201/eid3002.231332 | DOI Listing |
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