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Open Access
Peer-reviewed
Research Article
Detection and quantification of SARS-CoV-2 by droplet digital PCR in real-time PCR negative nasopharyngeal swabs from suspected COVID-19 patients
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Claudia Alteri ,
Roles Data curation, Formal analysis, Writing – original draft
* E-mail: claudia.alteri@unimi.it
Affiliation Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy
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Valeria Cento,
Roles Data curation, Formal analysis, Writing – original draft
Affiliation Residency in Microbiology and Virology, Università degli Studi di Milano, Milan, Italy
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Maria Antonello,
Roles Methodology, Writing – original draft
Affiliation Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy
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Luna Colagrossi,
Roles Conceptualization, Methodology
Affiliation Department of Laboratories, Bambino Gesù Children's Hospital, Rome, Italy
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Marco Merli,
Roles Data curation
Affiliation Infectious Diseases, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Nicola Ughi,
Roles Data curation
Affiliation Rheumatology Unit, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Silvia Renica,
Roles Formal analysis
Affiliation Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy
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Elisa Matarazzo,
Roles Formal analysis
Affiliation Residency in Microbiology and Virology, Università degli Studi di Milano, Milan, Italy
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Federica Di Ruscio,
Roles Methodology
Affiliation Residency in Microbiology and Virology, Università degli Studi di Milano, Milan, Italy
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Livia Tartaglione,
Roles Investigation
Affiliation Residency in Microbiology and Virology, Università degli Studi di Milano, Milan, Italy
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Jacopo Colombo,
Roles Data curation
Affiliation Department of Cardiotoracovascular Anesthesia and Intensive Care, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Chiara Grimaldi,
Roles Investigation
Affiliation Department of Laboratory Medicine, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Stefania Carta,
Roles Resources
Affiliation Department of Laboratory Medicine, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Alice Nava,
Roles Resources
Affiliation Department of Laboratory Medicine, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Valentino Costabile,
Roles Formal analysis
Affiliation Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
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Chiara Baiguera,
Roles Data curation
Affiliation Infectious Diseases, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Daniela Campisi,
Roles Methodology
Affiliation Department of Laboratory Medicine, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Diana Fanti,
Roles Methodology
Affiliation Department of Laboratory Medicine, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Chiara Vismara,
Roles Conceptualization, Methodology
Affiliation Department of Laboratory Medicine, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Roberto Fumagalli,
Roles Data curation
Affiliation Department of Anesthesiology, Critical Care and Pain Medicine, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Francesco Scaglione,
Roles Writing – review & editing
Affiliation Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy
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Oscar Massimiliano Epis,
Roles Data curation
Affiliation Rheumatology Unit, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Massimo Puoti,
Roles Writing – review & editing
Affiliation Infectious Diseases, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
⨯ - [ ... ],
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Carlo Federico Perno
Roles Conceptualization, Writing – review & editing
Affiliations Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy, Department of Laboratory Medicine, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
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Detection and quantification of SARS-CoV-2 by droplet digital PCR in real-time PCR negative nasopharyngeal swabs from suspected COVID-19 patients
- Claudia Alteri,
- Valeria Cento,
- Maria Antonello,
- Luna Colagrossi,
- Marco Merli,
- Nicola Ughi,
- Silvia Renica,
- Elisa Matarazzo,
- Federica Di Ruscio,
- Livia Tartaglione

- Published: September 8, 2020
- https://doi.org/10.1371/journal.pone.0236311