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Mixed Cryptosporidium infections and HIV
Vitaliano Cama1, Robert H Gilman, Aldo Vivar
1Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
Emerging Infectious Diseases
|May 19, 2006
Summary
Rare Cryptosporidium infections in patients were often mixed. Seven of 21 patients had multiple Cryptosporidium species, suggesting mixed infections are common and should be considered in cryptosporidiosis diagnosis.
Area of Science:
- Medical Parasitology
- Infectious Diseases
- Molecular Diagnostics
Background:
- Cryptosporidium is an opportunistic protozoan parasite.
- Cryptosporidiosis is a significant cause of diarrheal disease worldwide.
- Diagnosis of rare Cryptosporidium species like C. canis and C. felis is challenging.
Purpose of the Study:
- To investigate the prevalence of mixed Cryptosporidium infections.
- To determine if rare Cryptosporidium species are associated with multiple infections.
- To highlight the importance of considering mixed infections in clinical practice.
Main Methods:
- Molecular detection of Cryptosporidium DNA.
- Analysis of patient samples diagnosed with rare Cryptosporidium species (C. canis, C. felis).
- Species identification using genetic markers.
Main Results:
- Mixed Cryptosporidium infections were detected in 7 out of 21 patients (33.3%).
- Six patients harbored infections with two Cryptosporidium species.
- One patient was infected with three Cryptosporidium species.
Conclusions:
- Mixed Cryptosporidium infections may be more common than previously recognized.
- The presence of rare Cryptosporidium species warrants thorough investigation for multiple concurrent infections.
- Clinical assessment for cryptosporidiosis should include consideration of mixed species infections.
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