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

Autor:	Salles FJ; Universidade de São Paulo. Faculdade de Saúde Pública. Departamento de Saúde Ambiental. São Paulo, SP, Brasil., Leroux IN; Universidade de São Paulo. Faculdade de Saúde Pública. Departamento de Saúde Ambiental. São Paulo, SP, Brasil., Araujo ANM; Universidade Federal de São Paulo. Instituto de Ciências Ambientais, Químicas e Farmacêuticas. Diadema, SP, Brasil., Assunção NA; Universidade Federal de São Paulo. Instituto de Ciências Ambientais, Químicas e Farmacêuticas. Diadema, SP, Brasil., Luz MS; Instituto de Pesquisas Tecnológicas de São Paulo. Laboratório de Processos Metalúrgicos. São Paulo, SP, Brasil., Veiga GRLD; Centro Universitário Faculdade de Medicina do ABC. Laboratório Clínico. Santo André, SP, Brasil., Fonseca FLA; Universidade Federal de São Paulo. Instituto de Ciências Ambientais, Químicas e Farmacêuticas. Diadema, SP, Brasil.; Centro Universitário Faculdade de Medicina do ABC. Laboratório Clínico. Santo André, SP, Brasil., Diaz-Quijano FA; Universidade de São Paulo. Faculdade de Saúde Pública. Departamento de Epidemiologia. São Paulo, SP, Brasil., Olympio KPK; Universidade de São Paulo. Faculdade de Saúde Pública. Departamento de Saúde Ambiental. São Paulo, SP, Brasil.
Jazyk:	angličtina
Zdroj:	Revista de saude publica [Rev Saude Publica] 2023 May 26; Vol. 57 (suppl 1), pp. 11s. Date of Electronic Publication: 2023 May 26 (Print Publication: 2023).
DOI:	10.11606/s1518-8787.2023057004829
Abstrakt:	Objective: 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. Methods: 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. Results: 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. Conclusion: 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.
Databáze:	MEDLINE
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