Last data update: Sep 23, 2024. (Total: 47723 publications since 2009)
Records 1-6 (of 6 Records) |
Query Trace: Piantadosi A [original query] |
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Unrecognized introductions of SARS-CoV-2 into the state of Georgia shaped the early epidemic (preprint)
Babiker A , Martin MA , Marvil C , Bellman S , Petit Iii RA , Bradley HL , Stittleburg VD , Ingersoll J , Kraft CS , Read TD , Waggoner JJ , Koelle K , Piantadosi A . medRxiv 2021 2021.09.19.21262615 In early 2020, as SARS-CoV-2 diagnostic and surveillance responses ramped up, attention focused primarily on returning international travelers. Here, we build on existing studies characterizing early patterns of SARS-CoV-2 spread within the U.S. by analyzing detailed clinical, molecular, and viral genomic data from the state of Georgia through March 2020. We find evidence for multiple early introductions into Georgia, despite relatively sparse sampling. Most sampled sequences likely stemmed from a single introduction from Asia at least two weeks prior to the state’s first detected infection. Our analysis of sequences from domestic travelers demonstrates widespread circulation of closely-related viruses in multiple U.S. states by the end of March 2020. Our findings indicate that the early attention directed towards identifying SARS-CoV-2 in returning international travelers may have led to a failure to recognize locally circulating infections for several weeks, and points towards a critical need for rapid and broadly-targeted surveillance efforts in the future.Competing Interest StatementThe authors have declared no competing interest.Funding StatementThis study was supported by the CDC contract 75D30121C10084 under BAA ERR 20-15-2997 the Pediatric Research Alliance Center for Childhood Infections and Vaccines and Childrens Healthcare of Atlanta and the Emory WHSC COVID-19 Urgent Research Engagement (CURE) Center made possible by generous philanthropic support from the O. Wayne Rollins Foundation and the William Randolph Hearst Foundation. AP is supported by NIH K08 AI139348. The Yerkes NHP Genomics Core is supported in part by NIH P51 OD011132 and sequence data was acquired on an Illumina NovaSeq6000 funded by NIH S10 OD 026799. Sample collection was supported by the National Center for Advancing Translational Sciences of the National Institutes of Health under Award Number UL1TR002378. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. Author DeclarationsI confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.YesThe details of the IRB/oversight body that provided approval or exemption for the research described are given below:This study was approved by the Emory University institutional review boardAll necessary patient/participant consent has been obtained and the appropriate institutional forms have been archived.YesI understand that all clinical trials and any other prospective interventional studies must be registered with an ICMJE-approved registry, such as ClinicalTrials.gov. I confirm that any such study reported in the manuscript has been registered and the trial registration ID is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial ID field explaining why the study was not registered in advance).YesI have followed all appropriate research reporting guidelines and uploaded the relevant EQUATOR Network research reporting checklist(s) and other pertinent material as supplementary files, if applicable.YesPublicly-available SARS-CoV-2 sequences from Georgia were generously contributed by Mayo Clinic Laboratories, Quest Diagnostics, and the U.S. Air Force School of Aerospace Medicine. We gratefully acknowledge the authors from the originating laboratories responsible for obtaining the specimens, as well as the submitting laboratories where the genome data were generated and shared via GISAID, on which this research is based (Supplementary Table 10). All Submitters of data may be contacted directly via www.gisaid.org.All the data will be publicly released upon publication. |
Co-circulating mumps lineages at multiple geographic scales (preprint)
Wohl S , Metsky HC , Schaffner SF , Piantadosi A , Burns M , Lewnard JA , Chak B , Krasilnikova LA , Siddle KJ , Matranga CB , Bankamp B , Hennigan S , Sabina B , Byrne EH , McNall RJ , Park DJ , Gharib S , Fitzgerald S , Barreira P , Fleming S , Lett S , Rota PA , Madoff LC , Yozwiak NL , MacInnis BL , Smole S , Grad YH , Sabeti PC . bioRxiv 2018 343897 Despite widespread vaccination, eleven thousand mumps cases were reported in the United States (US) in 2016–17, including hundreds in Massachusetts, primarily in college settings. We generated 203 whole genome mumps virus (MuV) sequences from Massachusetts and 15 other states to understand the dynamics of mumps spread locally and nationally, as well as to search for variants potentially related to vaccination. We observed multiple MuV lineages circulating within Massachusetts during 2016–17, evidence for multiple introductions of the virus to the state, and extensive geographic movement of MuV within the US on short time scales. We found no evidence that variants arising during this outbreak contributed to vaccine escape. Combining epidemiological and genomic data, we observed multiple co-circulating clades within individual universities as well as spillover into the local community. Detailed data from one well-sampled university allowed us to estimate an effective reproductive number within that university significantly greater than one. We also used publicly available small hydrophobic (SH) gene sequences to estimate migration between world regions and to place this outbreak in a global context, but demonstrate that these short sequences, historically used for MuV genotyping, are inadequate for tracing detailed transmission. Our findings suggest continuous, often undetected, circulation of mumps both locally and nationally, and highlight the value of combining genomic and epidemiological data to track viral disease transmission at high resolution. |
Genomic epidemiology of a severe acute respiratory syndrome coronavirus 2 outbreak in a US major league soccer club: Was it travel related
Carmola LR , Turcinovic J , Draper G , Webner D , Putukian M , Silvers-Granelli H , Bombin A , Connor BA , Angelo KM , Kozarsky P , Libman M , Huits R , Hamer DH , Fairley JK , Connor JH , Piantadosi A , Bourque DL . Open Forum Infect Dis 2023 10 (6) ofad235 BACKGROUND: Professional soccer athletes are at risk of acquiring severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). United States Major League Soccer (MLS) uses protocol-based SARS-CoV-2 testing for identification of individuals with coronavirus disease 2019. METHODS: Per MLS protocol, fully vaccinated players underwent SARS-CoV-2 real-time polymerase chain reaction testing weekly; unvaccinated players were tested every other day. Demographic and epidemiologic data were collected from individuals who tested positive, and contact tracing was performed. Whole genome sequencing (WGS) was performed on positive specimens, and phylogenetic analyses were used to identify potential transmission patterns. RESULTS: In the fall of 2021, all 30 players from 1 MLS team underwent SARS-CoV-2 testing per protocol; 27 (90%) were vaccinated. One player who had recently traveled to Africa tested positive for SARS-CoV-2; within the following 2 weeks, 10 additional players and 1 staff member tested positive. WGS yielded full genome sequences for 10 samples, including 1 from the traveler. The traveler's sample was Delta sublineage AY.36 and was closely related to a sequence from Africa. Nine samples yielded other Delta sublineages including AY.4 (n = 7), AY.39 (n = 1), and B.1.617.2 (n = 1). The 7 AY.4 sequences clustered together; suggesting a common source of infection. Transmission from a family member visiting from England to an MLS player was identified as the potential index case. The other 2 AY.4 sequences differed from this group by 1-3 nucleotides, as did a partial genome sequence from an additional team member. CONCLUSIONS: WGS is a useful tool for understanding SARS-CoV-2 transmission dynamics in professional sports teams. |
Unrecognized introductions of SARS-CoV-2 into the US state of Georgia shaped the early epidemic.
Babiker A , Martin MA , Marvil C , Bellman S , Petit Iii RA , Bradley HL , Stittleburg VD , Ingersoll J , Kraft CS , Li Y , Zhang J , Paden CR , Read TD , Waggoner JJ , Koelle K , Piantadosi A . Virus Evol 2022 8 (1) veac011 In early 2020, as diagnostic and surveillance responses for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ramped up, attention focused primarily on returning international travelers. Here, we build on existing studies characterizing early patterns of SARS-CoV-2 spread within the USA by analyzing detailed clinical, molecular, and viral genomic data from the state of Georgia through March 2020. We find evidence for multiple early introductions into Georgia, despite relatively sparse sampling. Most sampled sequences likely stemmed from a single or small number of introductions from Asia three weeks prior to the state's first detected infection. Our analysis of sequences from domestic travelers demonstrates widespread circulation of closely related viruses in multiple US states by the end of March 2020. Our findings indicate that the exclusive focus on identifying SARS-CoV-2 in returning international travelers early in the pandemic may have led to a failure to recognize locally circulating infections for several weeks and point toward a critical need for implementing rapid, broadly targeted surveillance efforts for future pandemics. |
Fatal Case of Chronic Jamestown Canyon Virus Encephalitis Diagnosed by Metagenomic Sequencing in Patient Receiving Rituximab.
Solomon IH , Ganesh VS , Yu G , Deng XD , Wilson MR , Miller S , Milligan TA , Mukerji SS , Mathewson A , Linxweiler J , Morse D , Ritter JM , Staples JE , Hughes H , Gould CV , Sabeti PC , Chiu CY , Piantadosi A . Emerg Infect Dis 2021 27 (1) 238-42 A 56-year-old man receiving rituximab who had months of neurologic symptoms was found to have Jamestown Canyon virus in cerebrospinal fluid by clinical metagenomic sequencing. The patient died, and postmortem examination revealed extensive neuropathologic abnormalities. Deep sequencing enabled detailed characterization of viral genomes from the cerebrospinal fluid, cerebellum, and cerebral cortex. |
Combining genomics and epidemiology to track mumps virus transmission in the United States.
Wohl S , Metsky HC , Schaffner SF , Piantadosi A , Burns M , Lewnard JA , Chak B , Krasilnikova LA , Siddle KJ , Matranga CB , Bankamp B , Hennigan S , Sabina B , Byrne EH , McNall RJ , Shah RR , Qu J , Park DJ , Gharib S , Fitzgerald S , Barreira P , Fleming S , Lett S , Rota PA , Madoff LC , Yozwiak NL , MacInnis BL , Smole S , Grad YH , Sabeti PC . PLoS Biol 2020 18 (2) e3000611 Unusually large outbreaks of mumps across the United States in 2016 and 2017 raised questions about the extent of mumps circulation and the relationship between these and prior outbreaks. We paired epidemiological data from public health investigations with analysis of mumps virus whole genome sequences from 201 infected individuals, focusing on Massachusetts university communities. Our analysis suggests continuous, undetected circulation of mumps locally and nationally, including multiple independent introductions into Massachusetts and into individual communities. Despite the presence of these multiple mumps virus lineages, the genomic data show that one lineage has dominated in the US since at least 2006. Widespread transmission was surprising given high vaccination rates, but we found no genetic evidence that variants arising during this outbreak contributed to vaccine escape. Viral genomic data allowed us to reconstruct mumps transmission links not evident from epidemiological data or standard single-gene surveillance efforts and also revealed connections between apparently unrelated mumps outbreaks. |
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