Abstract
BackgroundThe virulence of isolates among different Candida species causing candidemia may play a role in the prognosis of the patients. Furthermore, the potential relationship between genotype and virulence is still unclear and need to be further studied. AimsWe aim to assess the relationship between genotype and virulence in Candida species using a Galleria mellonella larvae infection model. MethodsOne hundred and ninety-four isolates from 68 clusters (Candida albicans, 114/41; Candida parapsilosis, 74/24; Candida tropicalis, 6/3) were compared against the same number of each species singleton genotypes in terms of survival of G. mellonella larvae. ResultsThe median of survival and the IQR ranges of clusters and singleton were as follows: C. albicans (2 days, IQR 1.5–2 vs. 2 days, IQR 1–2.25), C. parapsilosis (2 days, IQR 1.5–2.6 vs. 2 days, IQR 2–3.3), and C. tropicalis (1 day, IQR 1–3.5 vs. 2 days, IQR 2–3.5; p<0.05). High intra-cluster variability in terms of median of survival was found regardless the species. ConclusionsNo relationship between genotype and virulence in Candida was observed with the G. mellonella model.
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