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Sci Total Environ . Detection of the Omicron (B.1.1.529) variant of SARS-CoV-2 in aircraft wastewater

tetano

Editor, Senior Moderator
Sci Total Environ


. 2022 Jan 17;153171.
doi: 10.1016/j.scitotenv.2022.153171. Online ahead of print.
Detection of the Omicron (B.1.1.529) variant of SARS-CoV-2 in aircraft wastewater


Warish Ahmed[SUP] 1 [/SUP], Aaron Bivins[SUP] 2 [/SUP], Wendy J M Smith[SUP] 3 [/SUP], Suzanne Metcalfe[SUP] 3 [/SUP], Mikayla Stephens[SUP] 3 [/SUP], Amy V Jennison[SUP] 4 [/SUP], Frederick A J Moore[SUP] 4 [/SUP], Jayden Bourke[SUP] 3 [/SUP], Sanmarie Schlebusch[SUP] 4 [/SUP], Jamie McMahon[SUP] 4 [/SUP], Glen Hewitson[SUP] 4 [/SUP], Son Nguyen[SUP] 4 [/SUP], Jean Barcelon[SUP] 4 [/SUP], Greg Jackson[SUP] 5 [/SUP], Jochen F Mueller[SUP] 6 [/SUP], John Ehret[SUP] 7 [/SUP], Ian Hosegood[SUP] 7 [/SUP], Wei Tian[SUP] 8 [/SUP], Haofei Wang[SUP] 8 [/SUP], Lin Yang[SUP] 9 [/SUP], Paul Bertsch[SUP] 3 [/SUP], Josh Tynan[SUP] 6 [/SUP], Kevin V Thomas[SUP] 6 [/SUP], Kyle Bibby[SUP] 2 [/SUP], Tyson E Graber[SUP] 10 [/SUP], Ryan Ziels[SUP] 11 [/SUP], Stuart L Simpson[SUP] 12 [/SUP]



Affiliations

Abstract

On the 26th of November 2021 the World Health Organization (WHO) designated the newly detected B.1.1.529 lineage of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) the Omicron Variant of Concern (VOC). The genome of the Omicron VOC contains more than 50 mutations, many of which have been associated with increased transmissibility, differing disease severity, and potential to evade immune responses developed for previous VOCs such as Alpha and Delta. In the days since the designation of B.1.1.529 as a VOC, infections with the lineage have been reported in countries around the globe and many countries have implemented travel restrictions and increased border controls in response. We putatively detected the Omicron variant in an aircraft wastewater sample from a flight arriving to Darwin, Australia from Johannesburg, South Africa on the 25th of November 2021 via positive results on the CDC N1, CDC N2, and del(69-70) RT-qPCR assays per guidance from the WHO. The Australian Northern Territory Health Department detected one passenger onboard the flight who was infected with SARS-CoV-2, which was determined to be the Omicron VOC by sequencing of a nasopharyngeal swab sample. Subsequent sequencing of the aircraft wastewater sample using the ARTIC V3 protocol with Nanopore and ATOPlex confirmed the presence of the Omicron variant with a consensus genome that clustered with the B.1.1.529 BA.1 sub-lineage. Our detection and confirmation of a single onboard Omicron infection via aircraft wastewater further bolsters the important role that aircraft wastewater can play as an independent and unintrusive surveillance point for infectious diseases, particularly coronavirus disease 2019.

Keywords: Aircraft; COVID-19; Enveloped viruses; Human health risks; SARS-CoV-2; Wastewater surveillance.
 
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