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1.
Eur J Clin Microbiol Infect Dis ; 42(4): 387-398, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36790531

RESUMEN

Fever of unknown origin (FUO) is a serious challenge for physicians. The aim of the present study was to consider epidemiology and dynamics of FUO in countries with different economic development. The data of FUO patients hospitalized/followed between 1st July 2016 and 1st July 2021 were collected retrospectively and submitted from referral centers in 21 countries through ID-IRI clinical research platform. The countries were categorized into developing (low-income (LI) and lower middle-income (LMI) economies) and developed countries (upper middle-income (UMI) and high-income (HI) economies). This research included 788 patients. FUO diagnoses were as follows: infections (51.6%; n = 407), neoplasms (11.4%, n = 90), collagen vascular disorders (9.3%, n = 73), undiagnosed (20.1%, n = 158), miscellaneous diseases (7.7%, n = 60). The most common infections were tuberculosis (n = 45, 5.7%), brucellosis (n = 39, 4.9%), rickettsiosis (n = 23, 2.9%), HIV infection (n = 20, 2.5%), and typhoid fever (n = 13, 1.6%). Cardiovascular infections (n = 56, 7.1%) were the most common infectious syndromes. Only collagen vascular disorders were reported significantly more from developed countries (RR = 2.00, 95% CI: 1.19-3.38). FUO had similar characteristics in LI/LMI and UMI/HI countries including the portion of undiagnosed cases (OR, 95% CI; 0.87 (0.65-1.15)), death attributed to FUO (RR = 0.87, 95% CI: 0.65-1.15, p-value = 0.3355), and the mean duration until diagnosis (p = 0.9663). Various aspects of FUO cannot be determined by the economic development solely. Other development indices can be considered in future analyses. Physicians in different countries should be equally prepared for FUO patients.


Asunto(s)
Enfermedades Transmisibles , Fiebre de Origen Desconocido , Infecciones por VIH , Humanos , Fiebre de Origen Desconocido/epidemiología , Fiebre de Origen Desconocido/etiología , Fiebre de Origen Desconocido/diagnóstico , Estudios Retrospectivos , Enfermedades Transmisibles/diagnóstico , Enfermedades Transmisibles/epidemiología , Colágeno
2.
Eur J Clin Microbiol Infect Dis ; 39(3): 493-500, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-31758440

RESUMEN

Data are relatively scarce on gastro-intestinal tuberculosis (GITB). Most studies are old and from single centers, or did not include immunosuppressed patients. Thus, we aimed to determine the clinical, radiological, and laboratory profiles of GITB. We included adults with proven GITB treated between 2000 and 2018. Patients were enrolled from 21 referral centers in 8 countries (Belgium, Egypt, France, Italy, Kazakhstan, Saudi Arabia, UK, and Turkey). One hundred four patients were included. Terminal ileum (n = 46, 44.2%), small intestines except terminal ileum (n = 36, 34.6%), colon (n = 29, 27.8%), stomach (n = 6, 5.7%), and perianal (one patient) were the sites of GITB. One-third of all patients were immunosuppressed. Sixteen patients had diabetes, 8 had chronic renal failure, 5 were HIV positive, 4 had liver cirrhosis, and 3 had malignancies. Intestinal biopsy samples were cultured in 75 cases (78.1%) and TB was isolated in 65 patients (86.6%). PCR were performed to 37 (35.6%) biopsy samples and of these, 35 (94.6%) were positive. Ascites samples were cultured in 19 patients and M. tuberculosis was isolated in 11 (57.9%). Upper gastrointestinal endoscopy was performed to 40 patients (38.5%) and colonoscopy in 74 (71.1%). Surgical interventions were frequently the source of diagnostic samples (25 laparoscopy/20 laparotomy, n = 45, 43.3%). Patients were treated with standard and second-line anti-TB medications. Ultimately, 4 (3.8%) patients died and 2 (1.9%) cases relapsed. There was a high incidence of underlying immunosuppression in GITB patients. A high degree of clinical suspicion is necessary to initiate appropriate and timely diagnostic procedures; many patients are first diagnosed at surgery.


Asunto(s)
Mycobacterium tuberculosis , Tuberculosis Gastrointestinal/diagnóstico , Tuberculosis Gastrointestinal/microbiología , Antituberculosos/farmacología , Antituberculosos/uso terapéutico , Biopsia , Comorbilidad , Manejo de la Enfermedad , Susceptibilidad a Enfermedades , Femenino , Humanos , Masculino , Técnicas de Diagnóstico Molecular , Imagen Multimodal , Estudios Retrospectivos , Evaluación de Síntomas , Resultado del Tratamiento , Tuberculosis Gastrointestinal/terapia
4.
GMS Hyg Infect Control ; 11: Doc22, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27777875

RESUMEN

Aim: Latent tuberculosis infections (LTBI) contain a significant reservoir for future epidemics. Screening of health care workers (HCWs) in a high-risk tuberculosis (TB) environment is an important strategy in TB control. The study aimed to assess the prevalence of LTBI among high risk Egyptian HCWs and to assess infection associated risk factors. Methods: Fifty-two HCWs who work at intensive care unit (ICU), bronchoscopy unit, and chest diseases department were tested for LTBI using both tuberculin skin test (TST) and Quantiferon TB Gold in-tube test (QFT). Risk factors for infection, knowledge of HCWs towards different aspects of TB infection and agreement between TST and QFT were also evaluated. Results: Prevalence of LTBI in this study was 13.5% by QFT and TST. It was 13.6% by TST alone and 10.3% by QFT alone. There was good concordance between both tests (Kappa=0.713). There was a statistically significant association between prevalence of LTBI and age of staff ≥30 yr (p=0.002), period of working experience (p=0.006) and working at the Bronchoscopy Unit (p=0.001). The total knowledge of HCWs towards different aspects of TB infection was generally good. Conclusion: Although the participants in the current study were among high risk HCWs, the prevalence of LTBI was low. Bacille Calmette-Guerin (BCG) vaccination, young age, short employment duration, good knowledge and a good infection control were the predictors of low risk of contracting TB at our hospitals. The risk of TB infection in resource-limited countries can be reduced with simple continuous educational and administrative infection control programmes.

5.
J Infect Dev Ctries ; 9(3): 304-8, 2015 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-25771469

RESUMEN

INTRODUCTION: Commensal E. coli can be considered a reservoir of genes coding for antibiotic resistance that may be transmitted in hospitals by healthcare workers (HCWs). This study aimed to determine the fecal carriage rate of extended-spectrum ß-lactamase (ESBL)-producing E. coli among HCWs. METHODOLOGY: Stool samples were collected from 200 HCWs. Phenotypic screening for ESBL and AmpC ß-lactamases was performed using disk diffusion and minimum inhibitory concentration methods followed by the combined disks test and double synergy differential test for confirmation. Multiplex polymerase chain reaction (PCR) was used to detect blaSHV, blaTEM, blaCTX-M, and CIT groups for AmpC genes. RESULTS: Of 200 E. coli isolates, 100% were susceptible to imipenem, and 59 (29.5%) were resistant to one or more third-generation cephalosporins. By molecular analysis, 21% (42/200) were colonized by ESBL-producing E. coli, and 3% (6/200) were colonized by AmpC-producing E. coli. The blaSHV gene was the predominant ESBL gene, detected in 81.8% of the resistant E. coli isolates. CONCLUSIONS: These findings highlight the increase in fecal carriage of E. coli carrying ESBL and AmpC genes among HCWs, which may be one of the causes of the spread of ESBL-producing bacteria in hospitals and requires sound infection control measures. This is the first study of the fecal carriage rate of E. coli carrying AmpC genes in HCWs.


Asunto(s)
Portador Sano/microbiología , Infecciones por Escherichia coli/microbiología , Escherichia coli/enzimología , Escherichia coli/aislamiento & purificación , Heces/microbiología , Personal de Salud , beta-Lactamasas/metabolismo , Antibacterianos/farmacología , Portador Sano/epidemiología , ADN Bacteriano/genética , Escherichia coli/efectos de los fármacos , Escherichia coli/genética , Infecciones por Escherichia coli/epidemiología , Humanos , Pruebas de Sensibilidad Microbiana , Reacción en Cadena de la Polimerasa , Prevalencia , beta-Lactamasas/genética
6.
J Microbiol Biotechnol ; 25(10): 1734-41, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26032358

RESUMEN

Few research had investigated the secretion of phospholipase and aspartyl proteinase from Candida spp. causing infection in females with type 2 diabetes mellitus. This research aimed to investigate the prevalence of vulvovaginal candidiasis (VVC) in diabetic versus non-diabetic women and compare the ability of identified Candida isolates to secrete phospholipases and aspartyl proteinases with characterization of their genetic profile. The study included 80 females with type 2 diabetes mellitus and 100 non-diabetic females within the child-bearing period. Candida strains were isolated and identified by conventional microbiological methods and by API Candida. The isolates were screened for their extracellular phospholipase and proteinase activities by culturing them on egg yolk and bovine serum albumin media, respectively. Detection of aspartyl proteinase genes (SAP1 to SAP8) and phospholipase genes (PLB1, PLB2) were performed by multiplex polymerase chain reaction. Our results indicated that vaginal candidiasis was significantly higher among the diabetic group versus nondiabetic group (50% versus 20%, respectively) (p = 0.004). C. albicans was the most prevalent species followed by C. glabrata in both groups. No significant association between diabetes mellitus and phospholipase activities was detected (p = 0.262), whereas high significant proteinase activities exhibited by Candida isolated from diabetic females were found (82.5%) (p = 0.000). Non-significant associations between any of the tested proteinase or phospholipase genes and diabetes mellitus were detected (p > 0.05). In conclusion, it is noticed that the incidence of C. glabrata causing VVC is increased. The higher prevalence of vaginal candidiasis among diabetics could be related to the increased aspartyl proteinase production in this group of patients.


Asunto(s)
Proteasas de Ácido Aspártico/análisis , Candida/enzimología , Candidiasis Vulvovaginal/epidemiología , Candidiasis Vulvovaginal/microbiología , Diabetes Mellitus Tipo 2/complicaciones , Fosfolipasas/análisis , Animales , Proteasas de Ácido Aspártico/genética , Candida/clasificación , Candida/aislamiento & purificación , Bovinos , Medios de Cultivo/química , Femenino , Humanos , Fosfolipasas/genética , Reacción en Cadena de la Polimerasa , Prevalencia
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