Abstract
Cryptosporidium spp. are enteric parasites that infect humans and animals. In immunocompromised patients infection can be fatal. This study was conducted to identify sub-populations of Cryptosporidium hominis and C. parvum isolates from HIV-seropositive patients in Equatorial Guinea. In a previous study conducted in Equatorial Guinea, faecal samples from 171 HIV patients with gastrointestinal symptoms were analyzed. Of these, 13 and 17 were positive for C. hominis and C. parvum, respectively. The isolates were characterized using gp60 gene analysis. The gp60 gene could only be detected in 57% (17/30) of cases (10 C. parvum and 7 C. hominis). Three C. hominis (Ia, Ib and Id) and two C. parvum (IIc and IIe) subtype families were detected, including several subtypes. The study identified a high diversity of Cryptosporidium subtypes, suggesting that anthroponotic transmission plays an important role in the epidemiology of Cryptosporidium spp. in HIV-seropositive patients in Equatorial Guinea.
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