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Seroprevalence of SARS-CoV-2 Assessed by Four Chemiluminescence Immunoassays and One Immunocromatography Test for SARS-Cov-2.
Cerino, Pellegrino; Gallo, Alfonso; Pierri, Biancamaria; Buonerba, Carlo; Di Concilio, Denise; Cuomo, Maria Concetta; Vassallo, Lucia; Lo Conte, Gabriella; Coppola, Annachiara; Pizzolante, Antonio; Boccia, Giovanni; Ferrucci, Veronica; Atripaldi, Luigi; Triassi, Maria; Pacella, Daniela; Cennamo, Michele; Romano, Paolo; Sorbo, Teresa Maria; Furno, Alessandro; Catapano, Oriana; Contina, Aldo; Perruolo, Giuseppe; D'Amora, Maurizio; Terracciano, Daniela; Portella, Giuseppe.
  • Cerino P; Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy.
  • Gallo A; Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy.
  • Pierri B; Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy.
  • Buonerba C; Department of Medicine, Surgery, and Dentistry 'Scuola Medica Salernitana', University of Salerno, Baronissi, Italy.
  • Di Concilio D; Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy.
  • Cuomo MC; Regional Reference Center for Rare Tumors, Department of Oncology and Hematology, Azienda Ospedaliera Universitaria Federico II of Naples, Naples, Italy.
  • Vassallo L; Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy.
  • Lo Conte G; Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy.
  • Coppola A; Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy.
  • Pizzolante A; Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy.
  • Boccia G; Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy.
  • Ferrucci V; Centro di Referenza Nazionale per l'Analisi e Studio di Correlazione tra Ambiente, Animale e Uomo, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy.
  • Atripaldi L; Department of Medicine, Surgery, and Dentistry 'Scuola Medica Salernitana', University of Salerno, Baronissi, Italy.
  • Triassi M; CEINGE Biotecnologie Avanzate, Naples, Italy.
  • Pacella D; Cotugno Hospital, Azienda Ospedaliera di Rilievo Nazionale Ospedali dei Colli, Naples, Italy.
  • Cennamo M; Department of Public Health, Section of Hygiene, University of Naples Federico II, Naples, Italy.
  • Romano P; Department of Public Health, Section of Hygiene, University of Naples Federico II, Naples, Italy.
  • Sorbo TM; Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.
  • Furno A; Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.
  • Catapano O; Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.
  • Contina A; Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.
  • Perruolo G; Unità Operativa Complessa Medicina di laboratorio P. O. San Paolo, Azienda Sanitaria Locale Naples 1 Centro, Naples, Italy.
  • D'Amora M; Unità Operativa Complessa Medicina di laboratorio P. O. San Paolo, Azienda Sanitaria Locale Naples 1 Centro, Naples, Italy.
  • Terracciano D; Unità Operativa Complessa Medicina di laboratorio P. O. San Paolo, Azienda Sanitaria Locale Naples 1 Centro, Naples, Italy.
  • Portella G; Unità Operativa Complessa Medicina di laboratorio P. O. San Paolo, Azienda Sanitaria Locale Naples 1 Centro, Naples, Italy.
Front Public Health ; 9: 649781, 2021.
Article in English | MEDLINE | ID: covidwho-1231426
ABSTRACT
The onset of the new SARS-CoV-2 coronavirus encouraged the development of new serologic tests that could be additional and complementary to real-time RT-PCR-based assays. In such a context, the study of performances of available tests is urgently needed, as their use has just been initiated for seroprevalence assessment. The aim of this study was to compare four chemiluminescence immunoassays and one immunochromatography test for SARS-Cov-2 antibodies for the evaluation of the degree of diffusion of SARS-CoV-2 infection in Salerno Province (Campania Region, Italy). A total of 3,185 specimens from citizens were tested for anti-SARS-CoV-2 antibodies as part of a screening program. Four automated immunoassays (Abbott and Liaison SARS-CoV-2 CLIA IgG and Roche and Siemens SARS-CoV-2 CLIA IgM/IgG/IgA assays) and one lateral flow immunoassay (LFIA Technogenetics IgG-IgM COVID-19) were used. Seroprevalence in the entire cohort was 2.41, 2.10, 1.82, and 1.85% according to the Liaison IgG, Abbott IgG, Siemens, and Roche total Ig tests, respectively. When we explored the agreement among the rapid tests and the serologic assays, we reported good agreement for Abbott, Siemens, and Roche (Cohen's Kappa coefficient 0.69, 0.67, and 0.67, respectively), whereas we found moderate agreement for Liaison (Cohen's kappa coefficient 0.58). Our study showed that Abbott and Liaison SARS-CoV-2 CLIA IgG, Roche and Siemens SARS-CoV-2 CLIA IgM/IgG/IgA assays, and LFIA Technogenetics IgG-IgM COVID-19 have good agreement in seroprevalence assessment. In addition, our findings indicate that the prevalence of IgG and total Ig antibodies against SARS-CoV-2 at the time of the study was as low as around 3%, likely explaining the amplitude of the current second wave.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: SARS-CoV-2 / COVID-19 Type of study: Cohort study / Diagnostic study / Experimental Studies / Observational study / Prognostic study Limits: Humans Country/Region as subject: Europa Language: English Journal: Front Public Health Year: 2021 Document Type: Article Affiliation country: Fpubh.2021.649781

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Full text: Available Collection: International databases Database: MEDLINE Main subject: SARS-CoV-2 / COVID-19 Type of study: Cohort study / Diagnostic study / Experimental Studies / Observational study / Prognostic study Limits: Humans Country/Region as subject: Europa Language: English Journal: Front Public Health Year: 2021 Document Type: Article Affiliation country: Fpubh.2021.649781