PT - JOURNAL ARTICLE AU - H Yera AU - O Zamfir AU - T Bourcier AU - E Viscogliosi AU - C Noël AU - J Dupouy-Camet AU - C Chaumeil TI - The genotypic characterisation of <em>Acanthamoeba</em> isolates from human ocular samples AID - 10.1136/bjo.2007.132266 DP - 2008 Aug 01 TA - British Journal of Ophthalmology PG - 1139--1141 VI - 92 IP - 8 4099 - http://bjo.bmj.com/content/92/8/1139.short 4100 - http://bjo.bmj.com/content/92/8/1139.full SO - Br J Ophthalmol2008 Aug 01; 92 AB - Background: We characterised 37 amoebae cultured from corneal scrapings, contact lenses or lens case solutions of patients with suspected Acanthamoeba keratitis.Methods: The isolates were identified by their morphology and by PCR targeting the Acanthamoeba nuclear small-subunit rRNA gene. Acanthamoeba isolates were genotyped by DNA sequence analysis.Results: The 37 isolates comprised 35 Acanthamoeba, one Hartmannella and one Vahlkampfia. Ten Acanthamoeba isolates were shown to be responsible for keratitis.Conclusion: Genotype T4 was the only Acanthamoeba genotype responsible for keratitis in this study, and represented 79% of non-pathogenic isolates.