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1.
Lancet Microbe ; : 100931, 2024 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-39312928
2.
Open Forum Infect Dis ; 11(7): ofae340, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38957692

RESUMEN

Background: Varicella zoster virus (VZV) can reactivate and cause meningitis, but few studies have distinguished it from meningoencephalitis regarding treatment recommendations.The objective of this study was to assess the outcomes of a large series of patients with VZV meningitis according to their therapeutic management. Methods: We conducted a bicentric retrospective cohort study, in Paris, France, including all adult patients with a cerebrospinal fluid sample positive for VZV by polymerase chain reaction between April 2014 and June 2022. We distinguished meningitis from encephalitis according to the International Encephalitis Consortium criteria. Unfavorable outcome was defined as mortality or functional sequelae defined by a loss of 2 points on the modified Rankin Scale. Results: We included 123 patients with meningitis. Among them, 14% received no antivirals, while 20% were treated with oral valacyclovir alone, 41% with a short course of intravenous (IV) acyclovir before switch to valacyclovir, and 25% with a long course of IV acyclovir. Outcomes were favorable regardless of antiviral regimen. In multivariate analysis, only age, underlying immunosuppression, and cranial radiculitis appear to be predictive factors for longer IV therapy, based on the Akaike information criterion. Conclusions: In this study, patients with VZV meningitis had a good outcome, with no evidence of any impact of the treatment strategy. However, further studies are needed to support the possibility of milder treatment in immunocompetent patients, avoiding cost and side effects of IV acyclovir.

4.
Emerg Infect Dis ; 30(7): 1475-1477, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38916800

RESUMEN

Pasteurella bettyae is a gram-negative bacillus sporadically involved in human infections; its main reservoirs are cats and dogs. A recent publication suggests the possibility of sexual transmission leading to genital infections in men who have sex with men. We report 9 cases in France of genital infection among this population.


Asunto(s)
Homosexualidad Masculina , Infecciones por Pasteurella , Pasteurella , Humanos , Masculino , Francia/epidemiología , Adulto , Infecciones por Pasteurella/transmisión , Infecciones por Pasteurella/microbiología , Pasteurella/aislamiento & purificación , Pasteurella/genética , Pasteurella/clasificación , Persona de Mediana Edad , Adulto Joven
5.
Lancet Infect Dis ; 24(10): 1093-1104, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-38797183

RESUMEN

BACKGROUND: Increased rates of sexually transmitted infections (STIs) are reported among men who have sex with men (MSM) and new interventions are needed. We aimed to assess whether post-exposure prophylaxis (PEP) with doxycycline could reduce the incidence of chlamydia or syphilis (or both) and whether the meningococcal group B vaccine (4CMenB) could reduce the incidence of gonorrhoea in this population. METHODS: ANRS 174 DOXYVAC is a multicentre, open-label, randomised trial with a 2 × 2 factorial design conducted at ten hospital sites in Paris, France. Eligible participants were MSM aged 18 years or older, HIV negative, had a history of bacterial STIs within the 12 months before enrolment, and who were already included in the ANRS PREVENIR study (a cohort of MSM using pre-exposure prophylaxis with tenofovir and emtricitabine for HIV prevention). Participants were randomly assigned (2:1) to doxycycline PEP (two pills of 100 mg each orally within 72 h after condomless sex, with no more than three doses of 200 mg per week) or no PEP groups and were also randomly assigned (1:1) to the 4CMenB vaccine (GlaxoSmithKline, Paris, France; two intramuscular injections at enrolment and at 2 months) or no vaccine groups, using a computer-generated randomisation list with a permuted fixed block size of four. Follow-up occurred for at least 12 months (with visits every 3 months) up to 24 months. The coprimary outcomes were the risk of a first episode of chlamydia or syphilis (or both) after the enrolment visit at baseline for the doxycycline intervention and the risk of a first episode of gonorrhoea starting at month 3 (ie, 1 month after the second vaccine dose) for the vaccine intervention, analysed in the modified intention-to-treat population (defined as all randomly assigned participants who had at least one follow-up visit). This trial is registered with ClinicalTrials.gov, NCT04597424 (ongoing). FINDINGS: Between Jan 19, 2021, and Sept 19, 2022, 556 participants were randomly assigned. 545 (98%) participants were included in the modified intention-to-treat analysis for the doxycycline PEP and no PEP groups and 544 (98%) were included for the 4CMenB vaccine and no vaccine groups. The median follow-up was 14 months (IQR 9-18). The median age was 40 years (34-48) and all 545 participants were male. There was no interaction between the two interventions (p≥0·1) for the primary outcome. The incidence of a first episode of chlamydia or syphilis (or both) was 8·8 per 100 person-years (35 events in 362 participants) in the doxycycline PEP group and 53·2 per 100 person-years (80 events in 183 participants) in the no PEP group (adjusted hazard ratio [aHR] 0·17 [95% CI 0·12-0·26]; p<0·0001). The incidence of a first episode of gonorrhoea, starting from month 3 was 58·3 per 100 person-years (103 events in 274 participants) in the 4CmenB vaccine group and 77·1 per 100 person-years (122 events in 270 participants) in the no vaccine group (aHR 0·78 [95% CI 0·60-1·01]; p=0·061). There were no deaths during the study. One drug-related serious adverse event (fixed-drug eruption) occurred in the doxycycline PEP group. Six (2%) participants in the doxycycline group discontinued doxycycline PEP because of gastrointestinal adverse events. INTERPRETATION: Doxycycline PEP strongly reduced the incidence of chlamydia and syphilis in MSM, but we did not show efficacy of the 4CmenB vaccine for gonorrhoea. Doxycycline PEP should be assessed in other populations, such as heterosexual men and women, and its effect on antimicrobial resistance carefully monitored. FUNDING: ANRS Maladies Infectieuses Emergentes. TRANSLATION: For the French translation of the abstract see Supplementary Materials section.


Asunto(s)
Antibacterianos , Doxiciclina , Homosexualidad Masculina , Vacunas Meningococicas , Humanos , Doxiciclina/uso terapéutico , Doxiciclina/administración & dosificación , Masculino , Adulto , Antibacterianos/administración & dosificación , Antibacterianos/uso terapéutico , Francia/epidemiología , Vacunas Meningococicas/administración & dosificación , Profilaxis Posexposición/métodos , Adulto Joven , Gonorrea/prevención & control , Gonorrea/epidemiología , Infecciones por Chlamydia/prevención & control , Infecciones por Chlamydia/epidemiología , Sífilis/prevención & control , Sífilis/epidemiología , Persona de Mediana Edad , Incidencia , Enfermedades Bacterianas de Transmisión Sexual/prevención & control , Enfermedades Bacterianas de Transmisión Sexual/epidemiología
6.
Lancet Microbe ; 5(5): e478-e488, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38614111

RESUMEN

BACKGROUND: Regular quality-assured whole-genome sequencing linked to antimicrobial resistance (AMR) and patient metadata is imperative to elucidate the shifting gonorrhoea epidemiology, both nationally and internationally. We aimed to examine the gonococcal population in the European Economic Area (EEA) in 2020, elucidate emerging and disappearing gonococcal lineages associated with AMR and patient metadata, compare with 2013 and 2018 whole-genome sequencing data, and explain changes in gonococcal AMR and gonorrhoea epidemiology. METHODS: In this retrospective genomic surveillance study, we analysed consecutive gonococcal isolates that were collected in EEA countries through the European Gonococcal Antimicrobial Surveillance Programme (Euro-GASP) in 2020, and made comparisons with Euro-GASP data from 2013 and 2018. All isolates had linked AMR data (based on minimum inhibitory concentration determination) and patient metadata. We performed whole-genome sequencing and molecular typing and AMR determinants were derived from quality-checked whole-genome sequencing data. Links between genomic lineages, AMR, and patient metadata were examined. FINDINGS: 1932 gonococcal isolates collected in 2020 in 21 EEA countries were included. The majority (81·2%, 147 of 181 isolates) of azithromycin resistance (present in 9·4%, 181 of 1932) was explained by the continued expansion of the Neisseria gonorrhoeae sequence typing for antimicrobial resistance (NG-STAR) clonal complexes (CCs) 63, 168, and 213 (with mtrD/mtrR promoter mosaic 2) and the novel NG-STAR CC1031 (semi-mosaic mtrD variant 13), associated with men who have sex with men and anorectal or oropharyngeal infections. The declining cefixime resistance (0·5%, nine of 1932) and negligible ceftriaxone resistance (0·1%, one of 1932) was largely because of the progressive disappearance of NG-STAR CC90 (with mosaic penA allele), which was predominant in 2013. No known resistance determinants for novel antimicrobials (zoliflodacin, gepotidacin, and lefamulin) were found. INTERPRETATION: Azithromycin-resistant clones, mainly with mtrD mosaic or semi-mosaic variants, appear to be stabilising at a relatively high level in the EEA. This mostly low-level azithromycin resistance might threaten the recommended ceftriaxone-azithromycin therapy, but the negligible ceftriaxone resistance is encouraging. The decreased genomic population diversity and increased clonality could be explained in part by the COVID-19 pandemic resulting in lower importation of novel strains into Europe. FUNDING: European Centre for Disease Prevention and Control and Örebro University Hospital.


Asunto(s)
Antibacterianos , Farmacorresistencia Bacteriana , Gonorrea , Pruebas de Sensibilidad Microbiana , Neisseria gonorrhoeae , Secuenciación Completa del Genoma , Neisseria gonorrhoeae/efectos de los fármacos , Neisseria gonorrhoeae/genética , Humanos , Estudios Retrospectivos , Europa (Continente)/epidemiología , Gonorrea/epidemiología , Gonorrea/tratamiento farmacológico , Gonorrea/microbiología , Masculino , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Farmacorresistencia Bacteriana/genética , Femenino , Adulto , Genoma Bacteriano/genética , Persona de Mediana Edad , Adulto Joven , Genómica , Azitromicina/farmacología , Azitromicina/uso terapéutico , Adolescente
7.
Eur J Clin Microbiol Infect Dis ; 43(7): 1453-1459, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38676856

RESUMEN

We present our findings on interpatient transmission, epidemic control measures, and the outcomes of a series of ten critically ill burn patients who were either colonized or infected with carbapenem-resistant Acinetobacter baumannii (CRAB). None of the five infected patients achieved clinical cure, and all experienced relapses. Microbiological failure was observed in 40% of the infected patients. The isolated CRAB strains were found to carry blaOXA-23 and armA resistance genes. Despite the lack of clinical cure, all five infected patients survived and were discharged from the Burn Intensive Care Unit.


Asunto(s)
Infecciones por Acinetobacter , Acinetobacter baumannii , Antibacterianos , Compuestos de Azabiciclo , Carbapenémicos , Ceftazidima , Brotes de Enfermedades , Combinación de Medicamentos , Unidades de Cuidados Intensivos , Sulbactam , Acinetobacter baumannii/efectos de los fármacos , Acinetobacter baumannii/genética , Acinetobacter baumannii/aislamiento & purificación , Humanos , Infecciones por Acinetobacter/tratamiento farmacológico , Infecciones por Acinetobacter/microbiología , Infecciones por Acinetobacter/epidemiología , Antibacterianos/uso terapéutico , Antibacterianos/farmacología , Masculino , Compuestos de Azabiciclo/uso terapéutico , Compuestos de Azabiciclo/farmacología , Sulbactam/uso terapéutico , Sulbactam/farmacología , Femenino , Persona de Mediana Edad , Adulto , Carbapenémicos/farmacología , Carbapenémicos/uso terapéutico , Ceftazidima/uso terapéutico , Ceftazidima/farmacología , Quemaduras/complicaciones , Quemaduras/microbiología , Quimioterapia Combinada , Resultado del Tratamiento , Anciano , Infección Hospitalaria/microbiología , Infección Hospitalaria/tratamiento farmacológico , Infección Hospitalaria/epidemiología , Farmacorresistencia Bacteriana Múltiple/genética , beta-Lactamasas/genética , Unidades de Quemados
8.
Eur J Clin Microbiol Infect Dis ; 43(5): 1025-1029, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38472519

RESUMEN

The diagnosis of long COVID often relies on symptoms post-COVID-19, occasionally lacking biological evidence. This case study illustrates how investigating long COVID uncovered an underlying bartonellosis through clinical metagenomics. Following mild COVID-19, a 26-year-old woman experienced persistent symptoms during 5 months, including axillary adenopathy. Pathological examination, 16 S rRNA PCR, and clinical metagenomic analysis were done on an adenopathy biopsy. The latter revealed Bartonella henselae DNA and RNA. Treatment with clarithromycin improved symptoms. This case underscores the relevance of clinical metagenomics in diagnosing hidden infections. Post-COVID symptoms warrant thorough investigation, and bartonellosis should be considered in polyadenopathy cases, regardless of a recent history of cat or flea exposures.


Asunto(s)
Bartonella henselae , COVID-19 , Metagenómica , Humanos , Femenino , Bartonella henselae/genética , Bartonella henselae/aislamiento & purificación , Adulto , COVID-19/diagnóstico , COVID-19/complicaciones , Metagenómica/métodos , SARS-CoV-2/genética , Antibacterianos/uso terapéutico , Claritromicina/uso terapéutico
9.
J Antimicrob Chemother ; 79(3): 539-545, 2024 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-38197448

RESUMEN

OBJECTIVES: Haemophilus parainfluenzae is an opportunistic pathogen causing respiratory tract infection and sexually transmitted diseases. The emergence of multidrug resistance in this species is particularly worrisome, especially since the recent description of CTX-M-15 ESBL-producing isolates in Spain. The aim of this study was to characterize a CTX-M-15-producing H. parainfluenzae clinical isolate, HP01, obtained from a urethral swab. METHODS: MICs were determined with gradient strips for this isolate. Hydrolysis assays were performed with the ß LACTA test. Genomic DNA from HP01 was subjected to Illumina and Oxford Nanopore sequencing to investigate the genetic environment of blaCTX-M-15. Phylogenetic analysis was performed with available H. parainfluenzae genomes from the NCBI database, including CTX-M-15 producers. RESULTS: HP01, an XDR isolate, was resistant to penicillin, third-generation cephalosporins, fluoroquinolones, macrolides, cyclines and co-trimoxazole and susceptible only to carbapenems and rifampicin. HP01 carried blaTEM-1, blaCTX-M-15, tet(M), catS and mef(E)/mel and harboured amino acid substitutions in PBP3, PBP5, GyrA, ParC and FolA implicated in resistance. Genomic analysis revealed that blaCTX-M-15 was carried by a Tn3-like transposon inserted into a novel integrative and conjugative element (ICE), ICEHpaSLS, present on the chromosome and belonging to the ICEHin1056 family described in Haemophilus influenzae. The tet(M)-MEGA element was also detected on the chromosome. No plasmid was found. The phylogenetic analysis showed that four H. parainfluenzae producing CTX-M-15 clustered in the same clade. CONCLUSIONS: Here we report the description of an XDR H. parainfluenzae producing blaCTX-M-15 isolated from a urethral swab. The blaCTX-M-15 gene was inserted into an ICE structure similar to those recently described in CTX-M-15 producers in Spain. The emergence of XDR H. parainfluenzae producing blaCTX-M-15 is a matter of great concern. Careful surveillance is required to prevent its spread.


Asunto(s)
Antibacterianos , Haemophilus parainfluenzae , Haemophilus parainfluenzae/genética , Filogenia , Antibacterianos/farmacología , Sustitución de Aminoácidos , beta-Lactamasas/genética
11.
J Med Virol ; 95(9): e29068, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37654019

RESUMEN

Men who have sex with men (MSM) are at high risk of sexually transmitted infections, among which HPV infections are particularly prominent. We took advantage of the MémoDépistages study to evaluate HPV distribution at anal and oropharyngeal sites in HIV-negative multipartner MSM. HPV DNA was detected in 82% (n = 344) of anal and 11% (n = 45) of oropharyngeal self-collected samples taken from 421 participants. Multiple HPV types were detected in 70% of anal samples, and single HPV types in 91% of oropharyngeal samples. HPV16 was the most frequent type detected in the anus, followed by HPV6, HPV51, and HPV52. HPV6, HPV16, and HPV11 were the most prevalent types in the oropharynx. HPV targeted by the nonavalent vaccine was detected in 71% and 50% of HPV-positive anal and oropharyngeal samples, respectively. The main risk factor associated with HPV detection was frequenting gay meeting places, living in large cities, and having an anal Chlamydia trachomatis/Neisseria gonorrhoeae infection. In this cohort of highly sexually active MSM, HPV detection was highly frequent and rendered them at high risk of precancerous and cancerous lesions. Universal vaccination against HPV before sexual debut is an important public health strategy to prevent HPV-associated cancers in this highly vulnerable population of HIV-negative MSM.


Asunto(s)
Enfermedades del Ano , Infecciones por VIH , Infecciones por Papillomavirus , Minorías Sexuales y de Género , Masculino , Humanos , Canal Anal , Infecciones por Papillomavirus/diagnóstico , Infecciones por Papillomavirus/epidemiología , Homosexualidad Masculina , Papillomavirus Humano 16 , Papillomaviridae/genética , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología
12.
Anaesth Crit Care Pain Med ; 42(6): 101300, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37709201

RESUMEN

BACKGROUND: Accuracy and timing of antibiotic therapy remain a challenge for lower respiratory tract infections. New molecular techniques using Multiplex Polymerase Chain Reaction, including the FilmArray® Pneumonia Plus Panel [FAPP], have been developed to address this. The aim of this study is to evaluate the FAPP diagnostic performance for the detection of the 15 typical bacteria of the panel from respiratory samples in a meta-analysis from a systematic review. METHODS: We searched PubMed and EMBASE from January 1, 2010, to December 31, 2022, and selected any study on the FAPP diagnostic performance on respiratory samples compared to the reference standard, bacterial culture. The main outcome was the overall diagnostic accuracy with sensitivity and specificity. We calculated the log Diagnostic Odds Ratio and analyzed performance for separate bacteria, antimicrobial resistance genes, and according to the sample type. We also reported the FAPP turnaround time and the out-of-panel bacteria number and species. This study is registered with PROSPERO (CRD42021226280). RESULTS: From 10 317 records, we identified 30 studies including 8 968 samples. Twenty-one were related to intensive care. The overall sensitivity and specificity were 94% [95% Confidence Interval (CI) 91-95] and 98% [95%CI 97-98], respectively. The log Diagnostic Odds Ratio was 6.35 [95%CI 6.05-6.65]. 9.3% [95%CI 9.2-9.5] of bacteria detected in culture were not included in the FAPP panel. CONCLUSION: This systematic review reporting the FAPP evaluation revealed a high accuracy. This test may represent an adjunct tool for pulmonary bacterial infection diagnostic and antimicrobial stewardship. Further evidence is needed to assess the impact on clinical outcome.


Asunto(s)
Infecciones Bacterianas , Neumonía , Infecciones del Sistema Respiratorio , Humanos , Bacterias/genética , Infecciones del Sistema Respiratorio/diagnóstico , Infecciones del Sistema Respiratorio/microbiología , Reacción en Cadena de la Polimerasa Multiplex/métodos
13.
Euro Surveill ; 28(37)2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37707979

RESUMEN

We report two extensively drug-resistant (XDR) Neisseria gonorrhoeae (NG) isolates combining high-level resistance to azithromycin and resistance to ceftriaxone, obtained in France from two heterosexual patients, one of whom returned from Cambodia. Whole genome sequencing identified MLST ST16406, the mosaic penA-60.001 which caused ceftriaxone resistance in the internationally spreading FC428 clone, and the A2059G mutation in the 23S rRNA gene. The NG isolates F93 and F94 were related to XDR isolates detected in Austria and the United Kingdom in 2022.


Asunto(s)
Ceftriaxona , Gonorrea , Humanos , Azitromicina/farmacología , Ceftriaxona/farmacología , Francia , Gonorrea/diagnóstico , Gonorrea/tratamiento farmacológico , Tipificación de Secuencias Multilocus , Neisseria gonorrhoeae/genética
14.
J Antimicrob Chemother ; 78(8): 1982-1991, 2023 08 02.
Artículo en Inglés | MEDLINE | ID: mdl-37352017

RESUMEN

OBJECTIVES: Global antimicrobial resistance (AMR) surveillance in Neisseria gonorrhoeae is essential. In 2017-18, only five (10.6%) countries in the WHO African Region reported to the WHO Global Gonococcal Antimicrobial Surveillance Programme (WHO GASP). Genomics enhances our understanding of gonococcal populations nationally and internationally, including AMR strain transmission; however, genomic studies from Africa are extremely scarce. We describe the gonococcal genomic lineages/sublineages, including AMR determinants, and baseline genomic diversity among strains in Uganda, Malawi and South Africa, 2015-20, and compare with sequences from Kenya and Burkina Faso. METHODS: Gonococcal isolates cultured in Uganda (n = 433), Malawi (n = 154) and South Africa (n = 99) in 2015-20 were genome-sequenced. MICs were determined using ETEST. Sequences of isolates from Kenya (n = 159), Burkina Faso (n = 52) and the 2016 WHO reference strains (n = 14) were included in the analysis. RESULTS: Resistance to ciprofloxacin was high in all countries (57.1%-100%). All isolates were susceptible to ceftriaxone, cefixime and spectinomycin, and 99.9% were susceptible to azithromycin. AMR determinants for ciprofloxacin, benzylpenicillin and tetracycline were common, but rare for cephalosporins and azithromycin. Most isolates belonged to the more antimicrobial-susceptible lineage B (n = 780) compared with the AMR lineage A (n = 141), and limited geographical phylogenomic signal was observed. CONCLUSIONS: We report the first multi-country gonococcal genomic comparison from Africa, which will support the WHO GASP and WHO enhanced GASP (EGASP). The high prevalence of resistance to ciprofloxacin (and empirical use continues), tetracycline and benzylpenicillin, and the emerging resistance determinants for azithromycin show it is imperative to strengthen the gonococcal AMR surveillance, ideally including genomics, in African countries.


Asunto(s)
Antibacterianos , Gonorrea , Humanos , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Neisseria gonorrhoeae , Azitromicina/farmacología , Malaui , Sudáfrica , Uganda/epidemiología , Farmacorresistencia Bacteriana , Gonorrea/epidemiología , Gonorrea/tratamiento farmacológico , Ciprofloxacina/farmacología , Pruebas de Sensibilidad Microbiana , Tetraciclina/farmacología , Genómica
15.
Int J Antimicrob Agents ; 62(1): 106809, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37028731

RESUMEN

BACKGROUND: The optimal treatment regimen for infections caused by wild-type AmpC ß-lactamase-producing Enterobacterales remains controversial. This study compared the outcomes of bloodstream infections (BSI) and pneumonia according to the type of definitive antibiotic therapy: third-generation cephalosporin (3GC), piperacillin ± tazobactam, cefepime or carbapenem. METHODS: All cases of BSI and pneumonia caused by wild-type AmpC ß-lactamase-producing Enterobacterales over 2 years in eight university hospitals were reviewed. Patients who received definitive therapy consisting of either a 3GC (3GC group), piperacillin ± tazobactam (piperacillin group), or cefepime or a carbapenem (reference group) were included in this study. The primary endpoint was 30-day all-cause mortality. The secondary endpoint was treatment failure due to infection by emerging AmpC-overproducing strains. Propensity-score-based models were used to balance confounding factors between groups. RESULTS: In total, 575 patients were included in this study: 302 (52%) with pneumonia and 273 (48%) with BSI. Half (n=271, 47%) received cefepime or a carbapenem as definitive therapy, 120 (21%) received a 3GC, and 184 (32%) received piperacillin ± tazobactam. Compared with the reference group, 30-day mortality was similar in the 3GC [adjusted hazard ratio (aHR) 0.86, 95% confidence interval (CI) 0.57-1.31)] and piperacillin (aHR 1.20, 95% CI 0.86-1.66) groups. The likelihood of treatment failure was higher in the 3GC (aHR 6.81, 95% CI 3.76-12.4) and piperacillin (aHR 3.13, 95% CI 1.69-5.80) groups. The results were similar when stratifying the analysis on pneumonia or BSI. CONCLUSION: Treatment of included BSI or pneumonia caused by wild-type AmpC ß-lactamase-producing Enterobacterales with 3GC or piperacillin ± tazobactam was not associated with higher mortality, but was associated with increased risk of AmpC overproduction leading to treatment failure compared with cefepime or a carbapenem.


Asunto(s)
Carbapenémicos , Piperacilina , Humanos , Cefepima/uso terapéutico , Piperacilina/uso terapéutico , Carbapenémicos/uso terapéutico , Estudios Retrospectivos , Antibacterianos/uso terapéutico , beta-Lactamasas , Combinación Piperacilina y Tazobactam/uso terapéutico , Cefalosporinas/uso terapéutico
16.
J Glob Antimicrob Resist ; 33: 21-25, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-36822368

RESUMEN

OBJECTIVES: Apramycin is an aminoglycoside (AG) with a unique structure that is little affected by plasmid-mediated mechanisms of AG resistance, including most AG-modifying enzymes and 16S rRNA methyltransferases (16S-RMTases). We evaluate the activity of apramycin against a collection of 16S-RMTase-producing isolates, including Enterobacterales, non-fermenting bacteria, and carbapenemase producers. METHODS: In total, 164 non-duplicate 16S-RMTase-producing isolates, including 84 Enterobacterales, 53 Acinetobacter baumannii and 27 Pseudomonas aeruginosa isolates, were included in the study. Whole-genome sequencing (WGS) was performed on all isolates with Illumina technology. The minimum inhibitory concentration (MIC) of apramycin was determined by broth microdilution with customized Sensititre plates (Thermo Fisher Scientific, Dardilly, France). RESULTS: We found that 95% (156/164) of the 16S-RMTase-producing isolates were susceptible to apramycin, with a MIC50 of 4 mg/L and a MIC90 of 16 mg/L, respectively. Resistance rates were higher in P. aeruginosa (11%) than in A. baumannii (4%) or Enterobacterales (4%) (P < 0.0001 for each comparison). Eight isolates were resistant to apramycin, including one isolate with an MIC >64 mg/L due to the acquisition of the aac(3)-IV gene. The genetic environment of the aac(3)-IV gene was similar to that in the pAH01-4 plasmid of an Escherichia coli isolate from chicken in China. CONCLUSION: Resistance to apramycin remains rare in 16S-RMTase-producing isolates. Apramycin may, therefore, be an interesting alternative treatment for infections caused by 16S-RMTase and carbapenemase producers.


Asunto(s)
Antibacterianos , Nebramicina , ARN Ribosómico 16S/genética , Antibacterianos/farmacología , Aminoglicósidos/farmacología , Nebramicina/farmacología , Escherichia coli
17.
Clin Infect Dis ; 76(12): 2154-2162, 2023 06 16.
Artículo en Inglés | MEDLINE | ID: mdl-36785526

RESUMEN

BACKGROUND: The optimal duration of antimicrobial therapy for urinary tract infections (UTIs) in men remains controversial. METHODS: To compare 7 days to 14 days of total antibiotic treatment for febrile UTIs in men, this multicenter randomized, double-blind. placebo-controlled noninferiority trial enrolled 282 men from 27 centers in France. Men were eligible if they had a febrile UTI and urine culture showing a single uropathogen. Participants were treated with ofloxacin or a third-generation cephalosporin at day 1, then randomized at day 3-4 to either continue ofloxacin for 14 days total treatment, or for 7 days followed by placebo until day 14. The primary endpoint was treatment success, defined as a negative urine culture and the absence of fever and of subsequent antibiotic treatment between the end of treatment and 6 weeks after day 1. Secondary endpoints included recurrent UTI within weeks 6 and 12 after day 1, rectal carriage of antimicrobial-resistant Enterobacterales, and drug-related events. RESULTS: Two hundred forty participants were randomly assigned to receive antibiotic therapy for 7 days (115 participants) or 14 days (125 participants). In the intention-to-treat analysis, treatment success occurred in 64 participants (55.7%) in the 7-day group and in 97 participants (77.6%) in the 14-day group (risk difference, -21.9 [95% confidence interval, -33.3 to -10.1]), demonstrating inferiority. Adverse events during antibiotic therapy were reported in 4 participants in the 7-day arm and 7 in the 14-day arm. Rectal carriage of resistant Enterobacterales did not differ between both groups. CONCLUSIONS: A treatment with ofloxacin for 7 days was inferior to 14 days for febrile UTI in men and should therefore not be recommended. CLINICAL TRIALS REGISTRATION: NCT02424461; Eudra-CT: 2013-001647-32.


Asunto(s)
Antiinfecciosos , Infecciones Urinarias , Masculino , Humanos , Infecciones Urinarias/tratamiento farmacológico , Infecciones Urinarias/complicaciones , Antibacterianos/efectos adversos , Antiinfecciosos/uso terapéutico , Fiebre/tratamiento farmacológico , Fiebre/complicaciones , Método Doble Ciego , Ofloxacino/uso terapéutico
18.
Microbiol Spectr ; 11(1): e0254722, 2023 02 14.
Artículo en Inglés | MEDLINE | ID: mdl-36519852

RESUMEN

The FilmArray Blood Culture Identification 2 panel (BCID2; bioMérieux) is a fully automated PCR-based assay for identifying bacteria, fungi, and bacterial resistance markers in positive blood cultures (BC) in about 1 h. In this multicenter study, we evaluated the performance of the BCID2 panel for pathogen detection in positive BC. Conventional culture and BCID2 were performed in parallel at four tertiary-care hospitals. We included 152 positive BC-130 monomicrobial and 22 polymicrobial cultures-in this analysis. The BCID2 assay correctly identified 90% (88/98) of Gram-negative and 89% (70/79) of Gram-positive bacteria. Five bacterial isolates targeted by the BCID2 panel and recovered from five positive BC, including three polymicrobial cultures, were missed by the BCID2 assay. Fifteen isolates were off-panel organisms, accounting for 8% (15/182) of the isolates obtained from BC. The mean positive percent agreement between the BCID2 assay and standard culture was 97% (95% confidence interval, 95 to 99%), with agreement ranging from 67% for Candida albicans to 100% for 17 targets included in the BCID2 panel. BCID2 also identified the blaCTX-M gene in seven BC, including one for which no extended-spectrum ß-lactamase (ESBL)-producing isolate was obtained in culture. However, it failed to detect ESBL-encoding genes in three BC. Two of the 18 mecA/C genes detected by the BCID2 were not confirmed. No carbapenemase, mecA/C, or MREJ targets were detected. The median turnaround time was significantly shorter for BCID2 than for culture. The BCID2 panel may facilitate faster pathogen identification in bloodstream infections. IMPORTANCE Rapid molecular diagnosis combining the identification of pathogens and the detection of antibiotic resistance genes from positive blood cultures (BC) can improve the outcome for patients with bloodstream infections. The FilmArray BCID2 panel, an updated version of the original BCID, can detect 11 Gram-positive bacteria, 15 Gram-negative bacteria, 7 fungal pathogens, and 10 antimicrobial resistance genes directly from a positive BC. Here, we evaluated the real-life microbiological performance of the BCID2 assay in comparison to the results of standard methods used in routine practice at four tertiary care hospitals.


Asunto(s)
Bacteriemia , Sepsis , Humanos , Cultivo de Sangre , Sepsis/diagnóstico , Bacterias/genética , Bacterias Gramnegativas/genética , Bacterias Grampositivas , Bacteriemia/diagnóstico , Bacteriemia/microbiología
19.
Euro Surveill ; 27(39)2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-36177869

RESUMEN

BackgroundDiagnoses of bacterial sexually transmitted infections (STIs) have increased in France since the 2000s. The main strategy to control STI transmission is recommending/facilitating access to condom use, testing, and antibiotic treatments.AimThis study analyses the evolution of STI testing in the private sector in France from 2006 to 2020.MethodsNational health insurance reimbursement data were used to determine numbers and rates of individuals aged ≥ 15 years tested for diagnoses of chlamydia, gonorrhoea and syphilis in the private sector in France and to describe their evolution from 2006 to 2020.ResultsUpward tendencies in testing were observed from 2006 to 2019 for all three STIs. The highest testing rates were identified in people aged 25‒29-years old. The observed testing-increase from 2017 to 2019 was twice as high in young people (< 25 years old) as in older people. In 2019, chlamydia, gonorrhoea and syphilis testing rates were respectively 45.4 (+ 21% since 2017), 41.3 (+ 60%), and 47.2 (+ 22%) per 1,000 inhabitants. For all STIs combined, the number of tested individuals decreased by 37% between March and April 2020 during the first COVID-19 epidemic wave and lockdown in France.ConclusionImprovements found in STI testing rates may have resulted from better awareness, especially among young people and health professionals, of the importance of testing, following prevention campaigns. Nevertheless, testing levels remain insufficient considering increasing diagnoses. In 2020, the COVID-19 pandemic had a considerable impact on STI testing. Partner notification and offering diverse testing opportunities including self-sampling are essential to control STI epidemics particularly in exposed populations.


Asunto(s)
COVID-19 , Infecciones por Chlamydia , Gonorrea , Infecciones por VIH , Enfermedades de Transmisión Sexual , Sífilis , Adolescente , Adulto , Anciano , Antibacterianos , Infecciones por Chlamydia/diagnóstico , Infecciones por Chlamydia/epidemiología , Infecciones por Chlamydia/prevención & control , Control de Enfermedades Transmisibles , Atención a la Salud , Gonorrea/diagnóstico , Gonorrea/epidemiología , Infecciones por VIH/epidemiología , Humanos , Pandemias , Enfermedades de Transmisión Sexual/diagnóstico , Enfermedades de Transmisión Sexual/epidemiología , Enfermedades de Transmisión Sexual/prevención & control , Sífilis/epidemiología
20.
Eur J Clin Microbiol Infect Dis ; 41(10): 1269-1273, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36001207

RESUMEN

A 45-year-old female patient receiving rituximab for B cell non-Hodgkin follicular lymphoma presented unexplained recurrent fever, abdominal discomfort, and pollakiuria. We performed shotgun metagenomic sequencing from peri-kidney collection that identified a co-infection with Mycoplasma hominis and Ureaplasma urealyticum. The patient recovered with sequelae after appropriate antibiotic treatment was given.


Asunto(s)
Infecciones por Mycoplasma , Infecciones por Ureaplasma , Antibacterianos/uso terapéutico , Femenino , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Persona de Mediana Edad , Infecciones por Mycoplasma/microbiología , Mycoplasma hominis , Rituximab/uso terapéutico , Ureaplasma , Infecciones por Ureaplasma/microbiología , Ureaplasma urealyticum
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