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Intestinal microsporidiosis in HIV-infected children with diarrhea
Darawan Wanachiwanawin1, Kulkanya Chokephaibulkit, Punpob Lertlaituan
1Department of Parasitology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Abstract:
Intestinal microsporidiosis is a common opportunistic disease associated with diarrhea in adult AIDS patients in Thailand; the data regarding this infection in children are scarce. The present study was designed to investigate the prevalence and clinical features of intestinal microsporidiosis in hospitalized HIV-infected and uninfected (free of HIV) children with diarrhea. Of the 95 HIV-infected children and 87 uninfected children, 24 (25.3%) and 13 (14.9%) respectively were diagnosed with intestinal microsporidiosis. Species identification of microsporidia spores, by transmission electron microscopy, demonstrated Enterocytozoon bieneusi in 5 cases. Cryptosporidium parvum was a common coinfective parasite; pneumonia was the most frequent concurrent disease found in children with intestinal microsporidiosis. Malnutrition was commoner in the HIV-infected group (79.2% vs 23.1%; p = 0.003). This study indicates that intestinal microsporidiosis is an important disease in both HIV-infected and uninfected Thai children with diarrhea.
Insights
Intestinal microsporidiosis affects both HIV-infected and uninfected children with diarrhea in Thailand. This opportunistic infection is more prevalent in HIV-infected children and often co-occurs with malnutrition and pneumonia.
Area of Science:
- Medical Microbiology
- Pediatric Infectious Diseases
- Public Health
Background:
- Intestinal microsporidiosis is a known opportunistic infection in adult AIDS patients, but data in children, particularly in Thailand, are limited.
- Diarrhea is a common symptom in both HIV-infected and HIV-uninfected children, with various potential etiologies.
Purpose of the Study:
- To determine the prevalence and clinical characteristics of intestinal microsporidiosis in hospitalized children with diarrhea.
- To compare the occurrence of intestinal microsporidiosis between HIV-infected and HIV-uninfected children.
Main Methods:
- Cross-sectional study involving hospitalized children with diarrhea.
- Diagnosis of intestinal microsporidiosis using microscopy and transmission electron microscopy for species identification.
- Assessment of coinfections and concurrent diseases, including malnutrition and pneumonia.
Main Results:
- Prevalence of intestinal microsporidiosis was 25.3% in HIV-infected children and 14.9% in uninfected children.
- Enterocytozoon bieneusi was identified as a causative species.
- Cryptosporidium parvum coinfection and pneumonia were frequent; malnutrition was significantly higher in HIV-infected children.
Conclusions:
- Intestinal microsporidiosis is a significant cause of diarrhea in both HIV-infected and HIV-uninfected children in Thailand.
- The study highlights the importance of considering microsporidiosis in the differential diagnosis of diarrhea in pediatric populations, regardless of HIV status.
- Findings underscore the increased susceptibility and severity of opportunistic infections, including malnutrition, in HIV-infected children.
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