[Clinical and epidemiological description of severe outbreak of foodborne infection by Salmonella Enteritidis].

Background: Foodborne diseases have increased considerably.

Aim: To report a foodborne outbreak, remarking the importance of early notification to activate the epidemiological surveillance system.

Results: During February 2011 we observed a Salmonella Enteritidis outbreak.

Seroepidemiological aspects of human Strongyloides stercoralis infections in Chile.

To determine the frequency of Strongyloides stercoralis antibodies by means of the enzyme linked immunosorbent assay (ELISA) in Chile, in 2001-2003, 675 blood samples of patients of two psychiatric hospitals and 172 of healthy individuals (doctors, nurses and paramedicals) of these institutions, and 1,200 serum samples of blood donors of Northern region (Arica and Antofagasta), Central region (Valparaiso and Santiago) and Southern region (La Union) were collected. ELISA showed positivity of 12.1% in psychiatric hospitalized patients, none (0%) in the health personnel and 0.

[Immunodiagnosis of Strongyloides stercoralis infections in Chile using ELISA test].

Background: Strongyloides stercoralis is a world wide distributed small intestinal nematode parasite. In immunocompetent individuals S stercoralis can produce asymptomatic infections or a moderate clinical picture of diarrhea, some cases become chronic. In immunocompromised patients, a disseminated disease may appear, sometimes fatal.