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Prevalence of Giardia intestinalis infection in schistosomiasis-endemic areas in South-Central Mali
Journal
Tropical medicine and infectious disease
Volume
4
Number
2
Pages / Article-Number
86
Abstract
Intestinal parasite infections are frequent causes of diarrhea and malnutrition among children in the tropics. Transmission of helminths and intestinal protozoa is intimately connected with conditions of poverty, including inadequate sanitation and hygiene. Concurrent infections with several intestinal pathogens may lead to excess morbidity. Yet, there is a paucity of epidemiological data from Mali. In this study, stool samples from 56 individuals, aged 2-63 years, from Bamako and Niono, south-central Mali were examined for intestinal parasites using stool microscopy. Additionally, stool samples were subjected to a rapid diagnostic test (RDT) and polymerase chain reaction (PCR) for the detection of; Cryptosporidium; spp. and; Giardia intestinalis; . The predominant pathogens were; Schistosoma mansoni; and; G. intestinalis; with prevalences of 41% and 38%, respectively.; Hymenolepis nana; was detected in 4% of the participants, while no eggs of soil-transmitted helminths were found. Concurrent infections with; G. intestinalis; and; S. mansoni; were diagnosed in 16% of the participants. For the detection of; G. intestinalis; , PCR was more sensitive (100%) than RDT (62%) and microscopy (48%). As helminth-protozoa coinfections might have important implications for morbidity control programs, future studies should employ diagnostic tools beyond stool microscopy to accurately assess the co-endemicity of giardiasis and schistosomiasis.
