Article ; Online: SARS-CoV-2 in saliva, viremia and seroprevalence for COVID-19 surveillance at a single hematopoietic stem cell transplantation center: a prospective cohort study.
Revista do Instituto de Medicina Tropical de Sao Paulo
2022 Volume 64, Page(s) e39
Abstract: This prospective cohort study aims to analyze the surveillance of COVID-19 at a single hematopoietic stem cell transplantation (HSCT) center in Brazil, in 29 patients undergoing allogeneic HSCT and 57 healthcare workers (nurses and dentists), through ... ...
Abstract | This prospective cohort study aims to analyze the surveillance of COVID-19 at a single hematopoietic stem cell transplantation (HSCT) center in Brazil, in 29 patients undergoing allogeneic HSCT and 57 healthcare workers (nurses and dentists), through viral shedding of SARS-CoV-2 in saliva and plasma and seroprevalence of anti-SARS-CoV-2 IgG. In addition, we report two cases with prolonged persistent detection of SARS-CoV-2 without seroconversion. The sample collection was performed seven times for patients and five times for healthcare workers. Only two patients tested positive for SARS-CoV-2 in their saliva and plasma samples (6.9%) without seroconversion. All healthcare workers were asymptomatic and none tested positive. Two patients (6.9%) and four nurses (8%) had positive serology. No dentists had positive viral detection or positive serology. Our results reflect a low prevalence of positive RT-PCR and seroprevalence of SARS-CoV-2 in patients and healthcare workers at a single HSCT center. Results have also corroborated how the rigorous protocols adopted in transplant centers were even more strengthened in this pandemic scenario. |
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MeSH term(s) | Antibodies, Viral ; COVID-19/diagnosis ; COVID-19/epidemiology ; Health Personnel ; Hematopoietic Stem Cell Transplantation ; Humans ; Prospective Studies ; SARS-CoV-2 ; Saliva ; Seroepidemiologic Studies ; Viremia |
Chemical Substances | Antibodies, Viral |
Language | English |
Publishing date | 2022-06-06 |
Publishing country | Brazil |
Document type | Journal Article |
ZDB-ID | 128928-7 |
ISSN | 1678-9946 ; 0036-4665 |
ISSN (online) | 1678-9946 |
ISSN | 0036-4665 |
DOI | 10.1590/S1678-9946202264039 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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