AbstractWe report 11 cases of SARS-CoV-2 infection in healthcare workers (HCW) naive 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 programs.
SYMPTOMATIC SARS-CoV-2 INFECTIONS AFTER FULL SCHEDULE BNT162b2 VACCINATION IN SEROPOSITIVE HEALTHCARE WORKERS: A CASE SERIES FROM A SINGLE INSTITUTION
Baj, Andreina
Primo
;Novazzi, FedericaSecondo
;Genoni, Angelo;Gasperina, Daniela Dalla;Azzi, Lorenzo;Maggi, FabrizioUltimo
2021-01-01
Abstract
AbstractWe report 11 cases of SARS-CoV-2 infection in healthcare workers (HCW) naive 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 programs.
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