Sangam: A Confluence of Knowledge Streams

Rapid displacement of SARS-CoV-2 variant Delta by Omicron revealed by allele-specific PCR in wastewater

Show simple item record

dc.contributor Massachusetts Institute of Technology. Department of Biological Engineering
dc.creator Lee, Wei Lin
dc.creator Armas, Federica
dc.creator Guarneri, Flavia
dc.creator Gu, Xiaoqiong
dc.creator Formenti, Nicoletta
dc.creator Wu, Fuqing
dc.creator Chandra, Franciscus
dc.creator Parisio, Giovanni
dc.creator Chen, Hongjie
dc.creator Xiao, Amy
dc.creator Romeo, Claudia
dc.creator Scali, Federico
dc.creator Tonni, Matteo
dc.creator Leifels, Mats
dc.creator Chua, Feng Jun Desmond
dc.creator Kwok, Germaine WC
dc.creator Tay, Joey YR
dc.creator Pasquali, Paolo
dc.creator Thompson, Janelle
dc.creator Alborali, Giovanni Loris
dc.creator Alm, Eric J
dc.date 2023-01-26T17:52:18Z
dc.date 2023-01-26T17:52:18Z
dc.date 2022
dc.date 2023-01-26T17:44:48Z
dc.date.accessioned 2023-03-01T18:11:29Z
dc.date.available 2023-03-01T18:11:29Z
dc.identifier https://hdl.handle.net/1721.1/147743
dc.identifier Lee, Wei Lin, Armas, Federica, Guarneri, Flavia, Gu, Xiaoqiong, Formenti, Nicoletta et al. 2022. "Rapid displacement of SARS-CoV-2 variant Delta by Omicron revealed by allele-specific PCR in wastewater." Water Research, 221.
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/279095
dc.description On November 26, 2021, the B.1.1.529 COVID-19 variant was classified as the Omicron variant of concern (VOC). Reports of higher transmissibility and potential immune evasion triggered flight bans and heightened health control measures across the world to stem its distribution. Wastewater-based surveillance has demonstrated to be a useful complement for clinical community-based tracking of SARS-CoV-2 variants. Using design principles of our previous assays that detect SARS-CoV-2 variants (Alpha and Delta), we developed an allele-specific RT-qPCR assay which simultaneously targets the stretch of mutations from Q493R to Q498R for quantitative detection of the Omicron variant in wastewater. We report their validation against 10-month longitudinal samples from the influent of a wastewater treatment plant in Italy. SARS-CoV-2 RNA concentrations and variant frequencies in wastewater determined using these variant assays agree with clinical cases, revealing rapid displacement of the Delta variant by the Omicron variant within three weeks. These variant trends, when mapped against vaccination rates, support clinical studies that found the rapid emergence of SARS-CoV-2 Omicron variant being associated with an infection advantage over Delta in vaccinated persons. These data reinforce the versatility, utility and accuracy of these open-sourced methods using allele-specific RT-qPCR for tracking the dynamics of variant displacement in communities through wastewater for informed public health responses.
dc.format application/pdf
dc.language en
dc.publisher Elsevier BV
dc.relation 10.1016/J.WATRES.2022.118809
dc.relation Water Research
dc.rights Creative Commons Attribution-NonCommercial-NoDerivs License
dc.rights http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.source Elsevier
dc.title Rapid displacement of SARS-CoV-2 variant Delta by Omicron revealed by allele-specific PCR in wastewater
dc.type Article
dc.type http://purl.org/eprint/type/JournalArticle


Files in this item

Files Size Format View
1-s2.0-S004313542200762X-main.pdf 2.650Mb application/pdf View/Open

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Advanced Search

Browse