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Symptomatic SARS-CoV-2 infections after full schedule BNT162b2 vaccination in seropositive healthcare workers: a case series from a single institution.
Baj, Andreina; Novazzi, Federica; Genoni, Angelo; Ferrante, Francesca Drago; Taborelli, Stefano; Pini, Beatrice; Partenope, Michele; Valli, Marilena; Gasperina, Daniela Dalla; Capuano, Riccardo; Prestia, Martina; Spezia, Pietro Giorgio; Azzi, Lorenzo; Focosi, Daniele; Maggi, Fabrizio.
  • Baj A; Department of Medicine and Surgery, University of Insubria, Varese, Italy.
  • Novazzi F; Laboratory of Microbiology, ASST dei Sette Laghi, Varese, Italy.
  • Genoni A; Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy.
  • Ferrante FD; Laboratory of Microbiology, ASST dei Sette Laghi, Varese, Italy.
  • Taborelli S; Unit of Occupational Medicine, ASST dei Sette Laghi, Varese, Italy.
  • Pini B; Clinical Pathology Unit, St. Anna Hospital, Como, Italy.
  • Partenope M; Clinical Pathology Unit, St. Anna Hospital, Como, Italy.
  • Valli M; Clinical Pathology Unit, St. Anna Hospital, Como, Italy.
  • Gasperina DD; Department of Medicine and Surgery, University of Insubria, Varese, Italy.
  • Capuano R; Laboratory of Microbiology, ASST dei Sette Laghi, Varese, Italy.
  • Prestia M; Laboratory of Microbiology, ASST dei Sette Laghi, Varese, Italy.
  • Spezia PG; Department of Translational Research, University of Pisa, Pisa, Italy.
  • Azzi L; Unit of Oral Medicine and Pathology, ASST dei Sette Laghi, Varese, Italy.
  • Focosi D; North-Western Tuscany Blood Bank, Pisa University Hospital, Pisa, Italy.
  • Maggi F; Department of Medicine and Surgery, University of Insubria, Varese, Italy.
Emerg Microbes Infect ; 10(1): 1254-1256, 2021 Dec.
Article in English | MEDLINE | ID: covidwho-1263637
ABSTRACT
We report 11 cases of SARS-CoV-2 infection in healthcare workers (HCW) naïve for COVID-19 and seropositive after the second dose of the BNT162b2 mRNA vaccine. Based on voluntary-based surveillance, they tested positive for different strains of SARS-CoV-2, as Spike gene sequencing showed. Five of them reported mild symptoms. Given the risk for SARS-CoV-2 introduction from asymptomatic vaccinees, this case series suggests the need to continue nasopharyngeal screening programmes.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Vaccination / Spike Glycoprotein, Coronavirus / COVID-19 Vaccines / SARS-CoV-2 / COVID-19 Type of study: Observational study / Prognostic study Topics: Vaccines Limits: Adult / Female / Humans / Male / Middle aged Country/Region as subject: Europa Language: English Journal: Emerg Microbes Infect Year: 2021 Document Type: Article Affiliation country: 22221751.2021.1942230

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Vaccination / Spike Glycoprotein, Coronavirus / COVID-19 Vaccines / SARS-CoV-2 / COVID-19 Type of study: Observational study / Prognostic study Topics: Vaccines Limits: Adult / Female / Humans / Male / Middle aged Country/Region as subject: Europa Language: English Journal: Emerg Microbes Infect Year: 2021 Document Type: Article Affiliation country: 22221751.2021.1942230