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Emerg Infect Dis . Serial Intervals for SARS-CoV-2 Omicron and Delta Variants, Belgium, November 19-December 31, 2021

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  • Emerg Infect Dis . Serial Intervals for SARS-CoV-2 Omicron and Delta Variants, Belgium, November 19-December 31, 2021


    Emerg Infect Dis


    . 2022 Jun 22;28(8).
    doi: 10.3201/eid2808.220220. Online ahead of print.
    Serial Intervals for SARS-CoV-2 Omicron and Delta Variants, Belgium, November 19-December 31, 2021

    Cécile Kremer, Toon Braeye, Kristiaan Proesmans, Emmanuel André, Andrea Torneri, Niel Hens

    Abstract

    We investigated the serial interval for SARS-CoV-2 Omicron BA.1 and Delta variants and observed a shorter serial interval for Omicron, suggesting faster transmission. Results indicate a relationship between empirical serial interval and vaccination status for both variants. Further assessment of the causes and extent of Omicron dominance over Delta is warranted.

    Keywords: Belgium; COVID-19; SARS-CoV-2; coronavirus disease; respiratory infections; serial interval; severe acute respiratory syndrome coronavirus 2; vaccine-preventable diseases; variants of concern; viruses; zoonoses.

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