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Pneumocystis jirovecii and Cystic Fibrosis in Brittany, France

Abstract : Pneumocystis jirovecii is a transmissible fungus with a high pulmonary tropism. The prevalence of P. jirovecii in patients with cystic fibrosis (CF) has been estimated in Germany at 7.4%, in Spain at 21.5% and in Brazil at 38.2%. Data on the prevalence of P. jirovecii in CF patients in France remain scarce, particularly in Brittany, where the prevalence of CF is high (from 1/1600 to 1/4500). Our objectives were to determine the prevalence of colonization of the airways by P. jirovecii in Brittany in CF patients monitored at the "Centre de Ressources et de Comp,tences de la Mucoviscidose (CRCM)" of Rennes compared to that previously observed at the CRCM of Roscoff-Brest. Sputa from 86 patients (178 specimens) followed in Rennes were analyzed retrospectively. The detection of P. jirovecii was performed using real-time PCR targeting the gene encoding the mitochondrial large subunit of ribosomal RNA. Pneumocystis jirovecii DNA was detected in 3/86 patients (3.5%) monitored at Rennes, whereas it had previously been detected in 1/76 patients (1.3%) monitored at Roscoff-Brest, thus showing an overall prevalence of 2.5% in Brittany. These results obtained from two Breton centers taken together show that P. jirovecii prevalence in patients with CF in Brittany is lower than those observed in Germany, Spain, Brazil or in other regions of France. This study is a preliminary step in determining the risk factors for P. jirovecii acquisition, its epidemiological and clinical significance in CF patients through a prospective multicenter study.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01710996
Contributor : Xavier Chard-Hutchinson <>
Submitted on : Friday, February 16, 2018 - 3:55:56 PM
Last modification on : Sunday, October 25, 2020 - 7:05:51 AM

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Gilles Nevez, Florence Robert-Gangneux, Laurence Pougnet, Michele Virmaux, Chantal Belleguic, et al.. Pneumocystis jirovecii and Cystic Fibrosis in Brittany, France. Mycopathologia, Springer Verlag, 2018, 183 (1), pp.81-87. ⟨10.1007/s11046-017-0172-2⟩. ⟨hal-01710996⟩

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