Imported and Autochthonous Histoplasmosis in Bergamo Province, Northern Italy

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Abstract
This paper reviews the Italian literature and illustrates the results of a survey on Histoplasma capsulatum var. capsulatum infection carried out in the Bergamo area of Italy over the last 10 y. During the period January 1989-July 1999, 7 patients were diagnosed as being affected by the H. capsulatum var. capsulatum infection. Until 1999 41 cases have been described in the Italian literature (9 before the 1980s, 6 in the 1980s and 26 in the 1990s). The epidemiological profile of histoplasmosis is well-defined: risk factors are activities such as visiting caves or building sites, travelling and immigration, and it affects both immunocompetent and patients with AIDS. However, in the past, the Italian soil was considered as a low-endemic pabulum for H. capsulatum var. capsulatum and only a few autochthonous cases of histoplasmosis have been reported in Italy, specifically in the Po valley. In the present series, the identification of new cases in the Po valley in Lombardy suggests the possible autochthonous presence of histoplasmosis in Italy.

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