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Medicina (Buenos Aires)

versión impresa ISSN 0025-7680versión On-line ISSN 1669-9106


BARLASINA, Mariana S. et al. Trichinellosis serology in blood-donors from a non-endemic area of Argentina. Medicina (B. Aires) [online]. 2009, vol.69, n.3, pp.297-301. ISSN 0025-7680.

The aim of the present study was to determine the presence of human trichinellosis in an area of Argentina historically regarded as free of this parasitic disease. This parasitosis was assessed on 150 blood donors by means of immunoserological tests, and their relation with risk alimentary habits by a questionnaire. The questionnaires showed that 98.0% (n=147) of the individuals consumed pork and pork products at a high frequency. The main pork products incorporated to the habitual diet were the stuffed ones. A 80.3% (n=118) of the individuals had acquired such products at butchers, a 38.1% (n=56) at home slaughters and a 34.0% (n=50) at supermarkets. The immunoserological techniques employed were: enzyme immunoanalysis, indirect immunofluorescence and/or immunoelectrotransfer blot assay. Anti-Trichinella antibodies were detected in 8.0% (n=12) of the serum samples by more than one of the methodologies employed, considering these results as confirmatory of trichinellosis. The studies carried out herein demonstrate the existence of human trichinellosis in an area historically regarded as free of this parasitic disease and suggest its relationship with the ingestion of pork or pork products as a risk factor. These results indicate that the lack of reports should not be the only criterion for an area to be considered as Trichinella-free. The awareness of the existence of the parasite in a region will favor the establishment of control and prevention strategies which is of fundamental importance to avoid the spread of the disease.

Palabras clave : Human trichinellosis; Trichinella-free area; Risk alimentary habits; Seroprevalence; Argentina.

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