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Intestinal Microsporidiosis Due to Enterocytozoon bieneusi in Elderly Human Immunodeficiency Virus–Negative Patients from Vigo, Spain

2002; Oxford University Press; Volume: 34; Issue: 7 Linguagem: Inglês

10.1086/339205

1537-6591

B. Lores, I. López-Miragaya, Cristina Arias, Soledad Fenoy, Júlio Augusto do Prado Torres, C. del Águila,

Toxoplasma gondii Research Studies

We report what is, to our knowledge, the first study in which microsporidial infection was detected in elderly human immunodeficiency virus (HIV)–negative patients. Of the 60 elderly patients studied, 47 had diarrhea. Intestinal microsporidiosis due to Enterocytozoon bieneusi was diagnosed in 8 patients (17.02%) by use of Weber's chromotrope-based stain and polymerase chain reaction with species-specific primers. The mean age of these 8 patients was 75 years; 7 had chronic diarrhea and 1 had nonchronic diarrhea. Six of the patients with chronic diarrhea had no other pathogens isolated. In our opinion, elderly patients, because of their special immunological characteristics, should be considered a group at risk for the acquisition of intestinal microsporidiosis.