Abstract:
INTRODUCTION:Mixed hepatitis C virus (HCV) genotype (GT) infections are clinically important as different genotypes have varied sensitivities to direct-acting antivirals (DAAs). A high prevalence of mixed GT infections was observed in individuals who inject drugs and had multiple HCV exposures. The prevalence of mixed HCV GT infections in men who have sex with men (MSM) and high-risk behaviors was investigated by ultra-deep sequencing (UDS). METHODS:NS5B fragment was sequenced from viruses of patients with recent HCV infection: there were 50 HIV-positive and 18 HIV-negative patients, including 13 from the ANRS Pre-Exposure Prophylaxis (PrEP) IPERGAY study. UDS data were analysed using Geneious (version 10.3.2). Phylogenetic trees were constructed using FastTree (version 2.1). RESULTS:HCV sequencing showed GT1a (47.1%), GT4d (41.2%), GT3a (8.8%) and GT2k (2.9%). We detected three (4.4%) mixed GT infections: one between predominant GT4d and minority GT1a, one between predominant GT4d and minority GT1b, and one between predominant GT1a and minority GT4d virus. The rates of minority GT viral populations detected in viruses of the three patients with mixed GT infections were 0.32%, 10.7%, and 1.3%, respectively. The first two patients were HIV co-infected and the third was HIV-negative under PrEP. The anti-HCV treatment was successful in all three patients. CONCLUSION:This work showed uncommon mixed HCV GT infections in MSM at high risk of multiple HCV exposures. The impact of these infections on treatment response has not been established but further studies on more patients are necessary. To prevent treatment failure in this population, regular monitoring of treatment response is needed, particularly when pan-genotypic treatment is not used.
journal_name
Int J Antimicrob Agentsjournal_title
International journal of antimicrobial agentsauthors
Nguyen T,Delaugerre C,Valantin MA,Amiel C,Netzer E,L'Yavanc T,Ohayon M,Israel G,Valin N,Day N,Kreplak G,Pialoux G,Calvez V,Molina JM,Marcelin AG,Todesco Edoi
10.1016/j.ijantimicag.2019.06.001subject
Has Abstractpub_date
2019-10-01 00:00:00pages
513-517issue
4eissn
0924-8579issn
1872-7913pii
S0924-8579(19)30142-6journal_volume
54pub_type
杂志文章abstract::Antimicrobial stewardship (AMS) is the cornerstone activity in the combat against antimicrobial resistance. In order to ensure sustainable deployment and development of AMS, a strategic and regulatory framework needs to be provided by national healthcare authorities. Experts from 32 European countries, Israel and Turk...
journal_title:International journal of antimicrobial agents
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abstract::Pseudomonas aeruginosa (PA) is a major cause of healthcare-associated infections. Antipseudomonal carbapenems are among the antimicrobial agents used to treat PA infections, but several mechanisms of resistance, including the production of a carbapenemase (CP), may compromise their clinical efficacy. The objectives of...
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journal_title:International journal of antimicrobial agents
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abstract::The importance of the amino acid sequence in the C-terminal domain of penicillin-binding protein 5 (PBP5) and the levels of PBP5 expression to ampicillin resistance of Taiwan clinical isolates of Enterococcus faecium were studied. Sequence data revealed the existence of 12 amino acid sequence variants within the C-ter...
journal_title:International journal of antimicrobial agents
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abstract::In the present study we tested the ability of beta-lactam antibiotics and other cell-wall antibiotics to inhibit the production of listeriolysin which is the main virulence factor of L. monocytogenes. The amount of listeriolysin produced was measured in the supernatants with a sensitive hemolysin assay and as beta-gal...
journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
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journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
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更新日期:2017-04-01 00:00:00
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journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
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journal_title:International journal of antimicrobial agents
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journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
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更新日期:1997-01-01 00:00:00
abstract::Amphotericin B is a powerful polyene antifungal drug used for treating systemic fungal infections and is usually administered for a short period. Side effects after prolonged use are unknown in humans. Here we report the case of a 28-year-old man suffering from chronic granulomatous disease (CGD), treated for invasive...
journal_title:International journal of antimicrobial agents
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doi:10.1016/j.ijantimicag.2014.02.015
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abstract::The novel ketolide telithromycin (formerly HMR-3647) was tested against a collection of pneumococci of varying sensitivity to erythromycin and clindamycin, isolated in geographically diverse UK hospitals. Telithromycin was highly active against erythromycin-susceptible pneumococci, the MIC(90) being 0.015 mg/l. Erythr...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/s0924-8579(01)00346-6
更新日期:2001-07-01 00:00:00
abstract::Antimicrobial resistance is a concern both for animal and human health. Veterinary programmes monitoring resistance of animal and zoonotic pathogens are therefore essential. Various European countries have implemented national surveillance programmes, particularly for zoonotic and commensal bacteria, and the European ...
journal_title:International journal of antimicrobial agents
pub_type: 杂志文章
doi:10.1016/j.ijantimicag.2012.11.004
更新日期:2013-05-01 00:00:00