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https://www.readbyqxmd.com/read/29304039/establishing-ebola-virus-disease-evd-diagnostics-using-genexpert-technology-at-a-mobile-laboratory-in-liberia-impact-on-outbreak-response-case-management-and-laboratory-systems-strengthening
#1
Philomena Raftery, Orla Condell, Christine Wasunna, Jonathan Kpaka, Ruth Zwizwai, Mahmood Nuha, Mosoka Fallah, Maxwell Freeman, Victoria Harris, Mark Miller, April Baller, Moses Massaquoi, Victoria Katawera, John Saindon, Philip Bemah, Esther Hamblion, Evelyn Castle, Desmond Williams, Alex Gasasira, Tolbert Nyenswah
The 2014-16 Ebola Virus Disease (EVD) outbreak in West Africa highlighted the necessity for readily available, accurate and rapid diagnostics. The magnitude of the outbreak and the re-emergence of clusters of EVD cases following the declaration of interrupted transmission in Liberia, reinforced the need for sustained diagnostics to support surveillance and emergency preparedness. We describe implementation of the Xpert Ebola Assay, a rapid molecular diagnostic test run on the GeneXpert platform, at a mobile laboratory in Liberia and the subsequent impact on EVD outbreak response, case management and laboratory system strengthening...
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29240781/comparing-mail-in-self-collected-specimens-sent-via-united-states-postal-service-versus-clinic-collected-specimens-for-the-detection-of-chlamydia-trachomatis-and-neisseria-gonorrhoeae-in-extra-genital-sites
#2
Katheryn R Salow, Adam C Cohen, Claire C Bristow, Mark R McGrath, Jeffrey D Klausner
OBJECTIVES: To evaluate the concordance between clinic-collected extra-genital specimens and self-collected mailed-in extra-genital specimens among participants seeking sexually transmitted infection testing at a free clinic in Hollywood, CA. METHODS: A convenience sample of 210 men who have sex with men were enrolled between February 29, 2016 and December 21, 2016 and received mail-in testing kits for Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG). All testing was performed using the GeneXpert® CT/NG (Cepheid, Sunnyvale, CA)...
2017: PloS One
https://www.readbyqxmd.com/read/29226216/prevalence-and-associated-factors-of-tuberculosis-in-prisons-settings-of-east-gojjam-zone-northwest-ethiopia
#3
Mucheye Gizachew Beza, Emirie Hunegnaw, Moges Tiruneh
Background: Tuberculosis, mainly in prisoners, is a major public health problem in Ethiopia where there is no medical screening during prison admission. This creates scarcity of TB data in such settings. Objective: To determine prevalence and associated factors of TB in prisons in East Gojjam Zone, Northwest Ethiopia. Methods: A cross-sectional study was conducted from February to May 2016 among 265 prisoners in three prison sites. Sputum was processed using GeneXpert MTB/RIF...
2017: International Journal of Bacteriology
https://www.readbyqxmd.com/read/29225973/molecular-epidemiology-of-rifampicin-resistance-in-mycobacterium-tuberculosis-using-the-genexpert-mtb-rif-assay-from-a-rural-setting-in-india
#4
Raghuprakash Reddy, Gerardo Alvarez-Uria
The Xpert MTB/RIF assay can detect mutations in rpoB gene that confer rifampicin resistance (RR) using five overlapping probes (A, B, C, D, and E). In this study, we described our experience with the Xpert assay in a rural setting in India. During the study period, 3250 samples were processed. The result was unsuccessful in 5.7% of cases. For extrapulmonary specimens, the risk of unsuccessful result was higher in tissue biopsy and stool samples. Among samples positive for Mycobacterium tuberculosis, rifampicin resistance was indeterminate in 1...
2017: Journal of Pathogens
https://www.readbyqxmd.com/read/29223959/performance-and-operational-characteristics-of-point-of-care-tests-for-the-diagnosis-of-urogenital-gonococcal-infections
#5
REVIEW
Rebecca J Guy, Louise M Causer, Jeffrey D Klausner, Magnus Unemo, Igor Toskin, Anna M Azzini, Rosanna W Peeling
BACKGROUND: In 2012, there was an estimated 78 million new cases of gonorrhoea globally. Untreated infection may lead to reproductive and neonatal morbidity and facilitate HIV transmission. Diagnosis and treatment are a priority for control and prevention, yet use of point-of-care tests (POCTs) for Neisseria gonorrhoeae (NG) is limited. OBJECTIVES: To review the performance and operational characteristics of NG POCTs for diagnosis of urogenital gonorrhoea. METHODS: We compiled and synthesised findings from two separate systematic reviews which included evaluations published until August 2015...
December 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/29208880/comparative-yielding-of-bactec-mgit-960-and-genexpert-mtb-rif-assay-for-rapid-diagnosis-of-drug-resistance-tuberculosis-from-sputum-specimen
#6
N Laskar, M A Hossain, S A Nasreen, S M Kamal, S Roy, F Nahar, M Rahman, T K Barman
Among communicable disease, tuberculosis is the second leading cause of death worldwide, killing nearly two million people each year. Several diagnostic techniques are currently used to detect mycobacteria in respiratory specimens. Therefore an alternative, rapid and most effective method is required for diagnosis of pulmonary tuberculosis which is relatively more sensitive and specific. A total of 107 sputum samples of suspected TB patients were enrolled attending the National Tuberculosis Reference Laboratory (NTRL), Mohakhali, Dhaka, Bangladesh from July 2014 to July 2015...
October 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29187929/-role-of-genexpert-mtb-rif-test-in-the-screening-for-pulmonary-tuberculosis-at-the-general-referral-provincial-hospital-of-bukavu-in-the-east-of-the-democratic-republic-of-the-congo-balance-after-10-months-of-use
#7
David Lupande, David Kaishusha, Carine Mihigo, Moise Itongwa, Gustave Yenga, Philippe Katchunga
Introduction: In sub-Saharan Africa, diagnostic methods for tuberculosis are inadequate and are essentially based on microscopy. They constitute a real obstacle to the control of tuberculosis. This study aimed to evaluate the performance of GeneXpert MTB/RIF test compared to classical Ziehl-Neelsen staining at the the general referral provincial hospital of Bukavu, in the east of the Democratic Republic of the Congo after 10 months of use. Methods: The results of Ziehl-Neelsen staining and GeneXpert MTB/RIF molecular biology test performed in 452 patients with suspected tuberculosis were collected...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29174733/comparison-of-the-cepheid-genexpert-ct-ng-assay-to-the-hologic-aptima-combo2-assay-for-the-detection-of-chlamydia-trachomatis-and-neisseria-gonorrhoeae-in-self-collected-rectal-swabs
#8
Laura Dize, Barbara Silver, Charlotte Gaydos
Self-collected rectal-swabs were tested for CT and NG on GeneXpert CT/NG as compared to APTIMA Combo2. Of 448 rectal-swabs, 22 were positive for CT; 7 for NG on both assays; two were discordant. Sensitivity and specificity of GeneXpert was 95.5% and 99.7% for chlamydia, respectively; for gonorrhea both were 100%.
October 26, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29158866/-tb-hiv-co-infection-associated-with-kaposi-s-sarcoma-under-opioid-substitution-treatment-using-methadone-about-a-case
#9
Viviane Marie Pierre Cisse Diallo, Louise Fortes Deguenonvo, Khardiata Diallo Mbaye, Daye Ka, Ndeye Aissatou Lakhe, Ibrahima Ndiaye, Daouda Thioub, Sylvie Audrey Diop Nyafouna, Aminata Massaly, Alassane Dièye, Moustapha Diop, Cheikh Tidiane Ndour, Moussa Seydi
Late diagnosis of HIV infection can be fatal because it favors the appearance of opportunistic infections whose management requires the use of several molecules which can cause drug interactions. We report the case of a 45-year old female patient under heroin substitution treatment, using methadone and with HIV1 under antiretroviral treatment. This patient had nonspecific pulmonary appearance associated with dry nagging cough and progressive dyspnea evolving in a feverish context. Moreover, clinical examination showed left lower limb lymphedema with painless angiomatous nodules evolving over three years associated with plaques, angiomatous nodules occurred more recently at the level of the anterior face of the thorax...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29142048/accurate-pcr-detection-of-influenza-a-b-and-rsv-using-the-cepheid-xpert-flu-rsv-xpress-assay-in-point-of-care-settings-comparison-to-prodesse-proflu
#10
Daniel M Cohen, Jennifer Kline, Larissa S May, Glenn Eric Harnett, Jane Gibson, Stephen Y Liang, Zubaid Rafique, Carina A Rodriguez, Kevin M McGann, Charlotte A Gaydos, Donna Mayne, David Phillips, Jason Cohen
The Xpert Flu+RSV Xpress Assay is a fast, automated in vitro diagnostic test for qualitative detection and differentiation of influenza A, B, and RSV performed on the Cepheid GeneXpert Xpress System. The objective of this study was to establish performance characteristics of the Xpert Flu+RSV Xpress Assay compared to the Prodesse ProFlu+ real-time RT-PCR assay (ProFlu+) for the detection of influenza A and B as well as RSV in a CLIA-waived (CW) setting. Overall, the assay, using fresh and frozen nasopharyngeal (NP) swabs, demonstrated high concordance with ProFlu+ in the combined CW and non-CW settings with Positive Percent Agreements (PPA) (100%, 100%, 97...
November 15, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29133554/what-is-resistance-impact-of-phenotypic-versus-molecular-drug-resistance-testing-on-multi-and-extensively-drug-resistant-tuberculosis-therapy
#11
Jan Heyckendorf, Sönke Andres, Claudio U Köser, Ioana D Olaru, Thomas Schön, Erik Sturegård, Patrick Beckert, Viola Schleusener, Thomas A Kohl, Doris Hillemann, Danesh Moradigaravand, Julian Parkhill, Sharon J Peacock, Stefan Niemann, Christoph Lange, Matthias Merker
Rapid and accurate drug-susceptibility testing (DST) is essential for the treatment of multi- and extensively drug-resistant tuberculosis (M/XDR-TB). We compared the utility of genotypic DST assays with phenotypic DST (pDST) using BACTEC 960 MGIT or Löwenstein-Jensen to construct M/XDR-TB treatment regimens for a cohort of 25 consecutive M/XDR-TB patients and 15 possible anti-TB drugs.Genotypic DST results from Cepheid GeneXpert MTB/RIF (Xpert) and line probe assays (LPAs: Hain GenoType MTBDRplus 2.0 and MTBDRsl 2...
November 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29117351/finding-the-missing-patients-with-tuberculosis-lessons-learned-from-patient-pathway-analyses-in-5-countries
#12
Christy Hanson, Mike Osberg, Jessie Brown, George Durham, Daniel P Chin
Background: Despite significant progress in diagnosis and treatment of tuberculosis over the past 2 decades, millions of patients with tuberculosis go unreported every year. The patient-pathway analysis (PPA) is designed to assess the alignment between tuberculosis care-seeking patterns and the availability of tuberculosis services. The PPA can help programs understand where they might find the missing patients with tuberculosis. Methods: This analysis aggregates and compares the PPAs from case studies in Kenya, Ethiopia, Indonesia, the Philippines, and Pakistan...
November 6, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29097418/prevalence-and-treatment-outcomes-of-routine-chlamydia-trachomatis-neisseria-gonorrhoeae-and-trichomonas-vaginalis-testing-during-antenatal-care-gaborone-botswana
#13
Adriane Wynn, Doreen Ramogola-Masire, Ponatshego Gaolebale, Neo Moshashane, Ontiretse Sickboy, Sofia Duque, Elizabeth Williams, Klara Doherty, Jeffrey D Klausner, Chelsea Morroni
OBJECTIVES: Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG) and Trichomonas vaginalis (TV) are curable, mostly asymptomatic, STIs that cause adverse maternal and perinatal outcomes. Most countries do not test for those infections during antenatal care. We implemented a CT, NG and TV testing and treatment programme in an antenatal clinic in Gaborone, Botswana. METHODS: We conducted a prospective study in the antenatal clinic at Princess Marina Hospital in Gaborone, Botswana...
November 2, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/29091135/an-evaluation-of-false-positive-rifampicin-resistance-on-the-xpert-mtb-rif
#14
Yeliz Tanriverdi Cayci, Kemal Bilgin, Ahmet Yilmaz Coban, Asuman Birinci, Belma Durupınar
BACKGROUND: Mycobacterium tuberculosis (MTB) is one of the most significant causes of mortality and morbidity. Early diagnose is important especially in multiple drug resistant tuberculosis to avoid transmission. Traditional techniques requires at least one to three weeks for diagnosis of tuberculosis. Diagnostic delays with multiple drug resistant tuberculosis are associated with worse clinical outcomes and increased transmission The Xpert MTB/RIF assay is one of the new diagnostic device for the diagnosis of tuberculosis and rapid detection of rifampicin resistance...
November 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/29066627/detection-of-neisseria-gonorrhoeae-and-chlamydia-trachomatis-from-pooled-rectal-pharyngeal-and-urine-specimens-in-men-who-have-sex-with-men
#15
David John Speers, I-Ly Joanna Chua, Justin Manuel, Lewis Marshall
OBJECTIVES: Screening of men who have sex with men (MSM) for Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) requires sampling from anorectal and pharyngeal sites in addition to urogenital sampling. Due to the cost of testing multiple anatomical sites individually testing of pooled specimens has potential merit. The Cepheid GeneXpert CT/NG assay (GeneXpert), which also has potential for point-of-care nucleic acid testing in the sexual health clinic, has not been assessed for pooled specimen testing...
October 24, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/29062564/bacille-calmette-gu%C3%A3-rin-vaccine-induced-tuberculous-hip-osteomyelitis-in-an-infant-case-report
#16
Mohammed S Al-Azri, Jazel Manarang, Yaqoub Al-Mufargi
To this day, tuberculosis (TB) continues to pose a significant global health burden. The World Health Organization's Expanded Programme on Immunization (EPI) recommends the bacille Calmette-Guérin (BCG) vaccine for infants to protect against the haematogenous spread of primary TB and other more severe types of TB infection. We report an eight-month-old boy who presented to the Armed Forces Hospital, Muscat, Oman, in 2015 with a one-month history of intermittent fever associated with a limited range of motion in the right hip area...
August 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/29061538/development-of-a-90-minute-integrated-noninvasive-urinary-assay-for-bladder-cancer-detection
#17
Ellen Wallace, Russell Higuchi, Malini Satya, Leena McCann, Mandy L Y Sin, Julia A Bridge, Huilin Wei, Jun Zhang, Edith Wong, Andrew Hiar, Kathleen E Mach, Douglas Scherr, R Blair Egerdie, Shoichiro Ohta, Wade J Sexton, Maxwell V Meng, Alon Z Weizer, Michael Woods, G Kenneth Jansz, Joseph Zadra, Yair Lotan, Bernard Goldfarb, Joseph C Liao
PURPOSE: Despite suboptimal sensitivity urine cytology is often performed as an adjunct to cystoscopy for bladder cancer diagnosis. We aimed to develop a noninvasive, fast molecular diagnostic test for bladder cancer detection with better sensitivity than urine cytology while maintaining adequate specificity. MATERIALS AND METHODS: Urine specimens were collected at 18 multinational sites from subjects prior to cystoscopy or tumor resection and from healthy and other control subjects without evidence of bladder cancer...
October 20, 2017: Journal of Urology
https://www.readbyqxmd.com/read/29038191/obstructive-uropathy-as-initial-presentation-of-genitourinary-tuberculosis-and-masquerading-as-a-postsurgical-complication
#18
Grace Igiraneza, Theobald Hategekimana, Olivier M Manzi, Onyema Ogbuagu
A 46-year-old woman who had a recent total abdominal hysterectomy presented with a 1 month history of lower abdominal pain, 1 week of nausea and vomiting as well as decreased urinary output preceded by a year of significant unintentional weight loss. On renal imaging, she was found to have bilateral hydronephrosis and hydroureters in the setting of bilateral distal ureteric obstruction complicated with acute kidney injury and severe hyperkalaemia requiring haemodialysis. The initial concern was for ureteric injury, a known complication of abdominal hysterectomy procedures, however, a urological intervention, performed 9 months later to relieve the ureteric obstruction, revealed purulent material within the left ureter that was smear positive for acid fast bacilli...
October 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29028228/preventing-emergence-of-drug-resistant-tuberculosis-in-myanmar-s-transitioning-health-system
#19
Mishal S Khan, Coll Hutchison, Richard J Coker, Joanne Yoong, Khaung M Hane, Anh L Innes, Tin M Khaing, Sithu Aung
Multidrug-resistant tuberculosis (MDR-TB) is a particular threat to the populations of resource-limited countries. Although inadequate treatment of TB has been identified as a major underlying cause of drug resistance, essential information to inform changes in health service delivery and policy is missing. We investigate factors that may be driving the emergence of MDR-TB in Myanmar, a country where investment and health system reforms are ongoing to address the unexplained, high occurrence of MDR-TB. We conducted a multi-centre, retrospective case-control study in 10 townships across Yangon...
October 1, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/29026744/profile-of-drug-resistant-tuberculosis-in-western-maharashtra
#20
Sudhakar W More, Malangori Abdulgani Parande, Sanjeev W Kamble, Manjunath S Kamble
CONTEXT: Drug-resistant tuberculosis (TB) strains have evolved mainly due to incomplete or improper treatment of TB patients and are one of the hurdles in controlling TB problem. It is better to understand the magnitude and comorbidities associated with drug-resistant TB. AIM AND OBJECTIVES: (1) To study some of the sociodemographic profile and history of TB treatment of drug-resistant TB cases. (2) To study their drug-resistance pattern and their comorbidity profile...
January 2017: Journal of Family Medicine and Primary Care
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