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Free-living amoebae isolated in the Central African Republic: epidemiological and molecular aspects

Abstract : Among the many species of free-living amoebae infecting humans, only Naegleria fowleri, a few species of Acanthamoeba, Balamuthia mandrillaris recently Sappinia diploïdea and Paravahlkampfia Francina are responsible for human diseases especially deadly encephalitis outside of Acanthamoeba keratitis related. In the Central African Republic (CAR), no studies have previously been conducted about free amoebae and no suspicious cases of encephalitis or amoebic keratitis was reported even though the ecosystem supported the proliferation of these microorganisms. The objective of this study was to identify free-living amoebae present in CAR and to define the molecular characteristic. Bathing sites and cerebrospinal fluid from patients died of bacterial meningitis untagged were explored by culture and PCR and the amplicons were sequenced which allowed to characterize the species found. Only species of the genus Tetramitus, namely T. Entericus, T. waccamawensis and T.sp similar to those already described in the world and not pathogenic for humans were found in bathing sites, the cerebrospinal fluid meanwhile remained negative. Although no pathogen species such as Naegleria fowleri or species of Acanthamoeba have been isolated, this study worth pursuing because this investigation was very limited in space because of the insecurity in the country.
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Submitted on : Tuesday, November 14, 2017 - 4:20:28 PM
Last modification on : Friday, December 13, 2019 - 4:36:06 PM
Long-term archiving on: : Thursday, February 15, 2018 - 1:29:21 PM


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Alain Farra, Claudine Bekondi, Vianney Tricou, Jean Robert Mbecko, Antoine Talarmin. Free-living amoebae isolated in the Central African Republic: epidemiological and molecular aspects. The Pan African Medical Journal, 2017, 26, pp.57 - 57. ⟨10.11604/pamj.2017.26.57.9021⟩. ⟨pasteur-01635039⟩



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