[Microsporida microsporidiosis].

Microsporidia were infrequent in man until 1985. A new species, Enterocytozoon bieneusi, responsible for diarrhea, was described in AIDS patients in 1985. Little is known about the parasite; its diagnosis is difficult, and its incidence certainly underestimated.

[11 cases of isosporiasis (Isospora belli) in patients with AIDS].

The study of 11 cases of isosporiasis (Isospora belli) shows that this opportunistic coccidia, alone or with Cryptosporidium, causes severe prolonged diarrhoea which worsens the prognosis and evolution of AIDS patients. A low prevalence (0.7%) is found in subjects from tropical regions.

[Cryptosporidiosis: apropos of 11 cases].

Fecal samples of 61 patients were investigated for Cryptosporidium: it was identified in four cases of acquired immunodeficiency syndrome, five cases of lymphadenopathic syndrome, one case of immunosuppressive therapy. One person was immunocompetent but in close contact with one of the patient. The authors report clinical and epidemiological characteristics of the 11 patients.