Soroepidemiologia e variáveis ocupacionais e ambientais associadas à leptospirose, brucelose e toxoplasmose em trabalhadores de frigorífico

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

For many years leptospirosis, brucelosis and toxoplasmosis have been associated to man?s occupation, and a label of occupational illness has been attributed to these diseases when related to veterinarians, rural workers, workers of the public cleaning sector, amongst others. These illnesses are of great importance for public health and economy, because they result in direct and indirect costs for the workers and the respective companies. Researchers, through seraepidemiological study, have shown the occurence of these zoonosis among slaughterhouse workers. The objective of this paper is to develop a serumepidemiological study for leptospirosis, brucelosis and toxoplasmosis and identify occupational and environmental variables related to these infections in workers in a slaughterhouse in the northern Paraná state. Blood samples were collected from 150 workers in a slaughterhouse with Federal Inspection Service in the north of Paraná State. Test of microscopic agglutination (SAM) was ran with 22 Leptospira reference serovars for the diagnosis of leptospirosis. For brucelosis, the tamponated acidified antigen test (AAT) was conducted and the 2-mercaptoetanol test (2-ME) was run to confirm the research for these antibodies. For toxoplasmosis the indirect imunofluorescence test (IFI) was made in order to detect IgG antibodies against Toxoplasma gondii. An epidemiological survey was completed for each worker, investigating environmental and occupational variables which could possibly be associated with these infections. The results obtained from these surveys were submitted to a Chi-square test corrected by Yates and to Fisher?s exact test. Six samples were positive (4.00%) for leptospirosis with antibodies against Hardjo, Wolffi and Castellonis serovars. Only one sample (0.66%) was considered positive for brucelosis and 105 samples (70.00%) were considered positive for toxoplasmosis. None of the variables related to the occupational activity analyzed were considered a risk factors for leptospirosis, brucelosis and toxoplasmosis. However, the environmental variable dwelling in urban area (p= 0.033) were considered a risk factors for leptospirosis.

ASSUNTO(S)

brucellosis leptospirose brucelose toxoplasmose zoonoses frigoríficos veterinária toxoplasmosis leptospirosis

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