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Is chemical exposure present in informal work associated with Sars-CoV-2 infection?

Salles, Fernanda Junqueira ; Leroux, Isabelle Nogueira ; Araujo, Alda Neis Miranda de ; Assunção, Nilson Antonio ; Luz, Maciel Santos ; Veiga, Glaucia Raquel Luciano da ; Fonseca, Fernando Luiz Affonso ; Diaz-Quijano, Fredi Alexander ; Olympio, Kelly Polido Kaneshiro

Revista de saúde pública, 2023-01, Vol.57 (suppl 1), p.11s-11s [Periódico revisado por pares]

Brazil: Faculdade de Saúde Pública da Universidade de São Paulo

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  • Título:
    Is chemical exposure present in informal work associated with Sars-CoV-2 infection?
  • Autor: Salles, Fernanda Junqueira ; Leroux, Isabelle Nogueira ; Araujo, Alda Neis Miranda de ; Assunção, Nilson Antonio ; Luz, Maciel Santos ; Veiga, Glaucia Raquel Luciano da ; Fonseca, Fernando Luiz Affonso ; Diaz-Quijano, Fredi Alexander ; Olympio, Kelly Polido Kaneshiro
  • Assuntos: Health Policy & Services ; Original
  • É parte de: Revista de saúde pública, 2023-01, Vol.57 (suppl 1), p.11s-11s
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
    Conflict of Interest: The authors declare no conflict of interest.
  • Descrição: To compare the incidence of covid-19 symptoms between informal home-based workers and a control group and to assess the association of these cases with blood elements concentrations and other relevant risk factors for Sars-Cov-2 infection. Welders chemically exposed to potentially toxic elements (PTEs) (n = 26) and control participants (n = 25) answered questionnaires on adherence to social distancing and signs and symptoms of the disease for five months during the covid-19 pandemic. After follow-up, covid-19 serology tests were performed on a subsample of 12 chemically exposed workers and 20 control participants. Before the pandemic, PTE concentrations in blood (As, Mn, Ni, Cd, Hg, Sb, Sn, Cu, Zn, and Pb) were measured by ICP-MS. The chemically exposed group had higher lead and cadmium levels in blood (p < 0.01). The control group presented lower adherence to social distancing (p = 0.016). Although not significant, welders had a 74% greater chance of having at least one covid-19 symptom compared with control participants, but their adherence to social distancing decreased this chance by 20%. The use of taxis for transportation was a risk factor significantly associated with covid-19 symptoms. The lower adherence to social distancing among the control group greatly influences the development of covid-19. The literature lacks data linking exposure to PTEs and Sars-Cov-2 infection and/or severity. In this study, despite chemical exposure, working from home may have protected welders against covid-19, considering that they maintained greater social distancing than control participants.
  • Editor: Brazil: Faculdade de Saúde Pública da Universidade de São Paulo
  • Idioma: Inglês;Português
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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