Dataset Information

Sequencing identifies multiple early introductions of SARS-CoV-2 to the New York City region.

ABSTRACT: Effective public response to a pandemic relies upon accurate measurement of the extent and dynamics of an outbreak. Viral genome sequencing has emerged as a powerful approach to link seemingly unrelated cases, and large-scale sequencing surveillance can inform on critical epidemiological parameters. Here, we report the analysis of 864 SARS-CoV-2 sequences from cases in the New York City metropolitan area during the COVID-19 outbreak in spring 2020. The majority of cases had no recent travel history or known exposure, and genetically linked cases were spread throughout the region. Comparison to global viral sequences showed that early transmission was most linked to cases from Europe. Our data are consistent with numerous seeds from multiple sources and a prolonged period of unrecognized community spreading. This work highlights the complementary role of genomic surveillance in addition to traditional epidemiological indicators.

SUBMITTER: Maurano MT

PROVIDER: S-EPMC7706732 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Sequencing identifies multiple early introductions of SARS-CoV-2 to the New York City region.

Maurano Matthew T MT Ramaswami Sitharam S Zappile Paul P Dimartino Dacia D Boytard Ludovic L Ribeiro-Dos-Santos André M AM Vulpescu Nicholas A NA Westby Gael G Shen Guomiao G Feng Xiaojun X Hogan Megan S MS Ragonnet-Cronin Manon M Geidelberg Lily L Marier Christian C Meyn Peter P Zhang Yutong Y Cadley John J Ordoñez Raquel R Luther Raven R Huang Emily E Guzman Emily E Arguelles-Grande Carolina C Argyropoulos Kimon V KV Black Margaret M Serrano Antonio A Call Melissa E ME Kim Min Jae MJ Belovarac Brendan B Gindin Tatyana T Lytle Andrew A Pinnell Jared J Vougiouklakis Theodore T Chen John J Lin Lawrence H LH Rapkiewicz Amy A Raabe Vanessa V Samanovic Marie I MI Jour George G Osman Iman I Aguero-Rosenfeld Maria M Mulligan Mark J MJ Volz Erik M EM Cotzia Paolo P Snuderl Matija M Heguy Adriana A

Genome research 20201022 12

Effective public response to a pandemic relies upon accurate measurement of the extent and dynamics of an outbreak. Viral genome sequencing has emerged as a powerful approach to link seemingly unrelated cases, and large-scale sequencing surveillance can inform on critical epidemiological parameters. Here, we report the analysis of 864 SARS-CoV-2 sequences from cases in the New York City metropolitan area during the COVID-19 outbreak in spring 2020. The majority of cases had no recent travel hist ...[more]

PMID: 33093069

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Project description:Millions of Norway rats (Rattus norvegicus) inhabit New York City (NYC), presenting the potential for transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from humans to rats. We evaluated SARS-CoV-2 exposure among 79 rats captured from NYC during the fall of 2021. Our results showed that 13 of the 79 rats (16.5%) tested IgG- or IgM-positive, and partial SARS-CoV-2 genomes were recovered from all 4 rats that were qRT-PCR (reverse transcription-quantitative PCR)-positive. Genomic analyses suggest these viruses were associated with genetic lineage B, which was predominant in NYC in the spring of 2020 during the early pandemic period. To further investigate rat susceptibility to SARS-CoV-2 variants, we conducted a virus challenge study and showed that Alpha, Delta, and Omicron variants can cause infections in wild-type Sprague Dawley (SD) rats, including high replication levels in the upper and lower respiratory tracts and induction of both innate and adaptive immune responses. Additionally, the Delta variant resulted in the highest infectivity. In summary, our results indicate that rats are susceptible to infection with Alpha, Delta, and Omicron variants, and wild Norway rats in the NYC municipal sewer systems have been exposed to SARS-CoV-2. Our findings highlight the need for further monitoring of SARS-CoV-2 in urban rat populations and for evaluating the potential risk of secondary zoonotic transmission from these rat populations back to humans. IMPORTANCE The host tropism expansion of SARS-CoV-2 raises concern for the potential risk of reverse-zoonotic transmission of emerging variants into rodent species, including wild rat species. In this study, we present both genetic and serological evidence for SARS-CoV-2 exposure to the New York City wild rat population, and these viruses may be linked to the viruses that were circulating during the early stages of the pandemic. We also demonstrated that rats are susceptible to additional variants (i.e., Alpha, Delta, and Omicron) that have been predominant in humans and that susceptibility to infection varies by variant. Our findings highlight the reverse zoonosis of SARS-CoV-2 to urban rats and the need for further monitoring of SARS-CoV-2 in rat populations for potential secondary zoonotic transmission to humans.

Dataset Information

Sequencing identifies multiple early introductions of SARS-CoV-2 to the New York City region.

Publications

Sequencing identifies multiple early introductions of SARS-CoV-2 to the New York City region.

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