Showing 501 - 520 results of 642 for search 'RT America', query time: 0.18s Refine Results
  1. 501

    Development of a Comparative European Orthohantavirus Microneutralization Assay With Multi- Species Validation and Evaluation in a Human Diagnostic Cohort by Tabitha E. Hoornweg, Ilse Zutt, Ankje de Vries, Miriam Maas, Marieke N. Hoogerwerf, Tatjana Avšič-Županc, Miša Korva, Johan H. J. Reimerink, Chantal B. E. M. Reusken

    Published 2020-12-01
    “…The assay was validated using RT-PCR-confirmed rodent (n=17) and human sera (n=17), DOBV-suspected human sera (n=3) and cohorts of orthohantavirus-negative rodent (n=3) and human sera (n=85). 16/17 RT-PCR-confirmed rodent sera and 18/20 of the RT-PCR-confirmed and DOBV-suspected human sera were serotyped successfully, while for the remaining rodent (n=1) and human sera (n=2) no neutralizing titers could be detected. …”
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  2. 502
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    Identification of CRF66_BF, a New HIV-1 Circulating Recombinant Form of South American Origin by Joan Bacqué, Elena Delgado, Sonia Benito, María Moreno-Lorenzo, Vanessa Montero, Horacio Gil, Mónica Sánchez, María Carmen Nieto-Toboso, Josefa Muñoz, Miren Z. Zubero-Sulibarria, Estíbaliz Ugalde, Elena García-Bodas, Javier E. Cañada, Jorge del Romero, Carmen Rodríguez, Iciar Rodríguez-Avial, Luis Elorduy-Otazua, José J. Portu, Juan García-Costa, Antonio Ocampo, Jorge J. Cabrera, Michael M. Thomson

    Published 2021-11-01
    “…Through a Bayesian coalescent analysis, the most recent common ancestor of CRF66_BF was estimated around 1984 in South America, either in Paraguay or Argentina. Among Pr-RT sequences obtained by us from HIV-1-infected Paraguayans living in Spain, 14 (20.9%) of 67 were of CRF66_BF, suggesting that CRF66_BF may be one of the major HIV-1 genetic forms circulating in Paraguay. …”
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    Comparison of Demographic Profile and CT Findings in COVID-19 Pneumonia between First and Second Waves of COVID-19 Pandemic: A Retrospective Study by Taling Mari, Wangju Sumnyan, Kenjum Riba, Nyapu Soki

    Published 2022-04-01
    “…The demographic profile, radiological pattern based on the Radiological Society of North America (RSNA) consensus statement and CT severity index in COVID-19 pneumonia were compared during the peak three months of first and second waves of the pandemic. …”
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    Detection of rabies virus in organs unrelated to the central nervous system of experimentally-inoculated vampire bats by María Luisa Méndez Ojeda, Edith Rojas Anaya, José Francisco Morales Álvarez, Graciela Tapia Pérez, Gerardo Suzán, Osiris Gaona Pineda, Rodrigo A. Medellín Legorreta, Charles E Rupprecht, Elizabeth Loza-Rubio

    Published 2018-07-01
    “…Viral RNA was detected in brain, salivary gland and tongue tissue by RT-PCR and nested PCR (nPCR). Viral genome was also detected in organs unrelated to the central nervous system. …”
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    A Newly Emerging Serotype A Strain in Foot-and-Mouth Disease Virus with Higher Severity and Mortality in Buffalo than in Cattle Calves in North Egypt by Samy Metwally, Nabil Bkear, Yassien Badr, Besheer Elshafey, Sadeq K. Alhag, Laila A. Al-Shuraym, Gaber Batiha, Bassant Fakhry, Rania Hamada

    Published 2023-07-01
    “…A FMDV genome was detected and serotyped using one-step reverse transcription polymerase chain reactions (RT-PCRs). Nucleotide sequencing of the purified serotype-specific PCR bands was performed, and a maximum likelihood phylogenetic tree based on 600 base pairs of VP1 was constructed. …”
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    Low prevalence of hepatitis delta infection in Cuban HBsAg carriers: Prospect for elimination by Licel de los Ángeles Rodríguez Lay, Zexi Tan, Maria Caridad Montalvo Villalba, Marcia Samada Suárez, Marité Bello Corredor, Dayesi López Hernández, Barbara Marrero Sánchez, Lidunka Valdés Alonso, Aurélie Sausy, Judith M. Hübschen

    Published 2023-02-01
    “…If positive, the samples were analyzed for HDV-RNA using Real-Time RT-PCR targeting the ribozyme and HD antigen domains followed by genotyping based on phylogenetic analysis.ResultsTwo samples were anti-HDV positive [0.39% (95% CI 0.11–1.44)]. …”
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  14. 514

    Occurrence of SARS-CoV-2 reinfections at regular intervals in Ecuador by Rommel Guevara, Belén Prado-Vivar, Sully Márquez, Erika B. Muñoz, Mateo Carvajal, Juan José Guadalupe, Mónica Becerra-Wong, Stefanie Proaño, Rosa Bayas-Rea, Josefina Coloma, Michelle Grunauer, Gabriel Trueba, Patricio Rojas-Silva, Verónica Barragán, Paúl Cárdenas

    Published 2022-09-01
    “…Suspected reinfections were identified retrospectively from a database of RT-qPCR-positive patients. Cases were confirmed by sequencing viral genomes from the first and second infections using the ONT MinION platform. …”
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    Atypical Porcine Pestivirus as a Novel Type of Pestivirus in Pigs in China by Jin Yuan, Zhiyong Han, Jun Li, Yunzhen Huang, Jiongfeng Yang, Hongxing Ding, Jingyuan Zhang, Mengjiao Zhu, Yangyi Zhang, Jiedan Liao, Mingqiu Zhao, Jinding Chen

    Published 2017-05-01
    “…Recently, a novel atypical porcine pestivirus (APPV) linked with the development of congenital tremor (CT) in neonatal pigs was described in Europe and the Americas. Here, the first Asian APPV complete polyprotein coding sequence was assembled from serum samples from newborn piglets affected with CT in Southern China, and termed APPV_GD. 14 organ samples from affected piglets were analyzed by quantitative RT-PCR (qRT-PCR) to investigate the tissue tropism of APPV, and 135 serum samples from pigs from 10 farms were used for identifying APPV in adult pigs. …”
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    Emergence and dissemination of equine-like G3P[8] rotavirus A in Brazil between 2015 and 2021 by Meylin Bautista Gutierrez, Ighor Arantes, Gonzalo Bello, Lúcia Helena Berto, Leonardo Hermes Dutra, Rodrigo Bentes Kato, Tulio Machado Fumian

    Published 2024-04-01
    “…To understand its global emergence and dissemination in Brazilian territory, stool samples collected from 11 Brazilian states (n = 919) were genotyped by RT-qPCR and proceeded to sequence the VP7 gene (n = 102, 79 being newly generated) of the G3P[8] samples with pronounced viral loads. …”
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  19. 519

    Tracing the evolutionary history of hepatitis B virus genotype H endemic to Mexico by Alexis Jose-Abrego, Alexis Jose-Abrego, Sonia Roman, Sonia Roman, Saul Laguna-Meraz, Saul Laguna-Meraz, Saul Laguna-Meraz, João Renato Rebello-Pinho, João Renato Rebello-Pinho, Santiago Justo Arevalo, Santiago Justo Arevalo, Arturo Panduro, Arturo Panduro

    Published 2023-05-01
    “…Ninety-two HBV sequences of the reverse transcriptase (RT) domain of the polymerase gene (~1,251 bp) were analyzed; 48 were genotype H, 43 were genotype F, and the oldest HBV sequence from America was included as the root. …”
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