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  • Title: [Cryptosporidiosis in HIV-positive patients].
    Author: Majewska AC, Sulima P, Werner A, Barałkiewicz G, Juszczyk J, Pieniazek NJ.
    Journal: Wiad Parazytol; 1999; 45(2):125-8. PubMed ID: 16886452.
    Abstract:
    Cryptosporidium parvum is a coccidian parasite that affects millions of people worldwide. Clinical outcome of human cryptosporidiosis differs between immunocompetent and immnunodeficient individuals. C. parvum is responsible for causing protracted and life-threatening diarrhea, biliary, and pulmonary infections in immunocompromised persons, especially in patients with AIDS. Though no effective treatment has been found so far, early diagnosis may be useful in controlling the infection. Thirty-eight stool specimens obtained from 35 HIV-positive patients admitted to the Clinic of Infectious Diseases in Poznań, Poland, were examined for the detection of oocysts, coproantigen and DNA of Cryptosporidium using standard microscopic, immunologic and molecular diagnostic methods. The presence of Cryptosporidium was detected in 10 HIV-positive patients. Oocysts, coproantigen and DNA of this parasite were identified solely in one specimen while Cryptosporidium DNA was detected in 8 specimens. Cryptosporidium coproantigen was found only in one sample. Although, the PCR was the most useful technique in the detection of Cryptosporidium in HIV-positive patients it should be noted that PCR has many pitfalls and needs to be carefully controlled to avoid both false positive and false negative results.
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