Microscopic Morphology in Smears Prepared from MGIT Broth Medium for Rapid Presumptive Identification of Mycobacterium tuberculosis
|
|
- Cory O’Brien’
- 6 years ago
- Views:
Transcription
1 Annals of Clinical & Laboratory Science, vol. 33, no. 2, Microscopic Morphology in Smears Prepared from MGIT Broth Medium for Rapid Presumptive Identification of Mycobacterium tuberculosis complex, Mycobacterium avium complex and Mycobacterium kansasii Hui-Zin Tu, 1 Shu-Huei Chang, 1 Tsi-Shu Huaug, 1,3 Wen-Kuei Huaug, 1,3 Yung-Ching Liu, 1,2 and Susan Shin-Jung Lee 1,2 Section of Microbiology 1 and Infectious Diseases, 2 Kaohsiung Veterans General Hospital, and Department of Medical Technology, 3 Foo-Yin Institute of Technology, Kaohsiung, Taiwan Abstract. Mycobacterium species has a specific morphology when grown in liquid medium. Mycobacterium tuberculosis complex (MTB) often exhibits serpentine cording, which is different from the dot and crossbarring morphology observed in Mycobacterium avium complex (MAC) and Mycobacterium kansasii (MK), respectively. These characteristic morphologies can be used as a cost-effective method for rapid, presumptive identification of mycobacterial isolates cultured from the MGIT 960 system. By using Kinyoun acid-fast stain, serpentine cording was found in 840 of 904 (92.1%) samples positive for MTB; dot or loose aggregation was observed in 112 of 136 (82.3%) samples positive for MAC; and the cross-barring, ladder-like, morphology was observed in 45 of 56 (80.5%) samples positive for MK. The sensitivity and specificity were 92.9% and 96.4% for MTB; 82.4% and 94.5% for MAC; and 80.4% and 94.6 % for MK, respectively. Using growth rate selection to exclude rapid growers, the positive and negative predictive values were 98% and 87.6% for MTB; 78.3% and 98% for MAC; and 78.9% and 99.1% for MK, respectively. Twenty-eight (93.3%) of 30 strains with ball morphology were rapid growers. Microscopic morphology can be used for rapid, presumptive identification of M. tuberculosis complex, M. kansasii, and M. avium complex and act as a guide for appropriate selection of initial probes to reduce costs. (received 15 November 2002; accepted 26 January 2003) Keywords: mycobacteria, microscopic morphology Introduction Address correspondence to Susan Shin-Jung Lee, M.D., Section of Infectious Diseases, Kaohsiung Veterans General Hospital, 386 Ta-Chung 1st Rd, Kaohsiung, Taiwan, ROC; tel ;fax ; ssjlee@isca.vghks.gov.tw. Rapid, specific, and inexpensive detection of Mycobacterium tuberculosis complex, Mycobacterium avium complex, and Mycobacterium kansasii from clinical specimens is an important concern, especially in developing countries with a high incidence of mycobacterial disease and scarce economic resources. The distinctive morphology that some mycobacteria may exhibit during growth in liquid culture has been previously noted [1-5]. M. tuberculosis complex (MTB) grows as tight, rope-like aggregates of acidfast bacilli in which the long axes of the bacteria parallel the long axes of the cord, due to the presence of a cord factor [6]. Several papers have shown that M.tuberculosis complex (MTB) has the ability to form serpentine cording in liquid medium with a sensitivity of 23 to 95% and a specificity of 95 to 100% [1-5]. MAC has been described as dot-needlelike and loose aggregates, while MK has been described as broad rods that exhibit marked crossbarring likened to ladders. These characteristics are not very specific, but, with experience, permit one to distinguish MTB, MAC, and MK from the most common clinical mycobacterial species. This study assessed the feasibility of a simple method, based on morphology in smears prepared from culture broth, for presumptive identification of mycobacteria commonly encountered in clinical specimens /03/0200/0177 $ by the Association of Clinical Scientists, Inc.
2 180 Annals of Clinical & Laboratory Science Materials and Methods Specimens. A total of 11,328 specimens were collected and processed in the Mycobacteriology Laboratory of Kaohsiung Veterans General Hospital from Feb to Dec The specimens included 7604 sputum samples, 280 bronchial washing samples, 385 gastric lavage samples, 2198 body fluid samples, 358 urine samples, 208 tissue samples, and 295 pus/wound samples. All of the specimens were digested and decontaminated with N-acetyl-Lcysteine and 3%NaOH, except urine specimens, which were decontaminated with 4% sulfuric acid, at 35 C for 20 min. The reaction was stopped by addition of phosphate buffer (ph 6.8) and the specimens were centrifuged at 3000 x g for 15 min. Specimens from normally sterile sites were inoculated directly into the media. Each specimen was inoculated into a MGIT tube; pus or wound specimens were also inoculated onto a L-J agar slant. Culture. During incubation at 37 C in a BACTEC MGIT 960 instrument, every tube was monitored continuously for positive growth and reported as negative after 42 days. The BACTEC MGIT 960 instrument automatically monitors for an increase of fluorescence every 60 min. Algorithms enable the detection of a presumptive positive result and alert the operator to the locations of positive tubes by means of indicator lights on the front of the instrument. The status of all tubes is displayed on the liquid crystal display (LCD). Each sample that was identified as positive was removed from the BACTEC MGIT 960 instrument and examined by the Kinyoun acid-fast staining technique. Microscopic morphology. Seven morphological patterns in acid-fast smears were commonly observed and defined by microscopy at a magnification of x1000 (except x 100 for ball morphology) (Fig. 1). Cording (Fig. 1a): 2-3 µm long, forming serpentine cords defined as rope-like aggregates in which the long axis of the bacteria is parallel to the long axis of the cord [3]. Dot (Fig. 1b): irregular short bacilli, 1-2 µm, coexisting with coccoid forms, arranged as single, dispersed cells or in small clumps. Needle (Fig. 1c): 2-3 µm bacilli, gram-negative bacilli-like, dispersed or forming irregular clumps. Ladder (Fig. 1d): broad, long (3-5 µm) bacilli, staining in characteristic cross-banding appearance, forming clumps resembling Chinese characters; sometimes incomplete cords [1]. Ball (Fig. 1e): long (3-5 µm) bacilli, aggregated into balls (magnification, x100). Short (Fig. 1f): regular long (3-5 µm) bacilli, Corynebacteria-like, forming clumps occurring in dispersed or palisade arrangements. Mixed: more than one morphological pattern. Identification. The BDProTecET system (Becton Dickinson Diagnostic Systems, Baltimore, MD) was used to identify mycobacterial isolates. Nontuberculous mycobacteria were grouped by the growth rate test. Appropriate kits (BDProTec MAC or KAN) were selected for slow growers based on microscopic morphology to detect M. kansasii and M. avium complex. If results were negative, further identification was performed using another kit. Results There were 1,372 (12.3%) specimens that were positive for mycobacteria from 736 patients, including 1,259 respiratory secretions (91.8%), 70 body fluids (5.0%), 11 urine specimens (0.8%), 26 tissue specimens (1.9%), and 6 pus specimens (0.4%). There were 904 (65.9%) MTB and 468 (34.1%) NTM (Table 1). Of 286 slow growers, 192 strains were MK and MAC, which were rapidly detected by BD ProbeTec kits. The microscopic morphology of acid-fast smears prepared from MGIT positive tubes were grouped into 7 types and the distribution of each type in Table 1. The positive culture rate of mycobacteria. Culture No. (%) MTB 904 (65.9%) NTM 468 (34.1%) MAC 136 (9.9%) MK 56 (4.1%) Rapid grower 182 (13.2%) Other slow grower 94 (6.9%)
3 Microscopic morphology of mycobacteria 181 Fig. 1. Morphological patterns, defined as a) cording, b) dot, c) needle, d) ladder, e) ball, and f) short patterns, (Kinyoun acid-fast stain; magnification x1000, except for ball pattern, x100.)
4 182 Annals of Clinical & Laboratory Science Table 2. The microscopic morphology and identification results. No. (%) of isolates of: TB MAC MK Rapid growers Other slow growers Morphology no. (%) 904 (65.9%) 136 (9.9%) 56 (4.1%) 182 (13.3%) 94 (6.9%) Cording 857 (62.4%) 840 (92.9%) 0 1 (1.8%) 12 (6.6%) 4 (4.3%) Dot 180 (3.1%) 3 (0.3%) 112 (82.4%) 5 (8.9%) 34 (18.7%) 26 (27.7%) Needle 120 (8.8%) 18 (2.0%) 12 (15.4%) 3 (5.4%) 40 (22.0%) 38 (40.4%) Ladder 116 (8.4%) 35 (3.9%) 1 (0.8%) 45 (80.5%) 24 (13.2%) 11 (11.7%) Ball 30 (2.2%) 0 1 (0.8%) 0 28 (15.4%) 1 (1.1%) Short 31 (2.3%) 2 (0.2%) 0 1 (1.8%) 19 (10.4%) 9 (9.6%) Mixed 38 (2.8%) 6 (0.7%) 1 (0.8%) 1 (1.8%) 25 (13.7%) 5 (5.3%) Table 3. Overall performance of presumptive identification of the mycobacteria by characteristic microscopic morphology. Morphology Presumptive Sensitivity Specificity Positive predictive Negative predictive identification (%) (%) value (%) value (%) Cording MTB Dot MAC Ladder MK Table 4. Morphologic assessments of MTB, MAC, and MK. Number of isolates of: Morphology MTB (n = 904) MAC (n = 136) MK (n = 560) 1st 2nd agreement (%) 1st 2ndagreement (%) 1st 2nd agreement (%) Cording Dot Needle Ladder Ball Short Mixed Average
5 Microscopic morphology of mycobacteria 183 variant mycobacteria are shown in Table 2. Cording morphology was found in 92.9% of the MTB cultures; dot and loose aggregation morphology in 82.4% of MAC cultures, and ladder morphology in 80.5% of MK cultures. The sensitivity and specificity were 92.9% and 96.4% for MTB; 82.4% and 94.5% for MAC; and 80.4% and 94.6 % for MK, respectively. The positive and negative predictive values were 98% and 87.6% for MTB; 62.2% and 98% for MAC; and 38.8% and 99.1% for MK, respectively. The positive predictive values were low for MAC and MK, but if slow growers were selected, the positive predictive values was improved to 78.3% and 78.9% for MAC and MK, respectively (Table 3). Twenty-eight of 30 strains (93.3%) with ball morphology were rapid growers. In order to avoid subjective bias in the recording of the microscopic morphology, all of the 1096 smears were assessed twice independently by one technician. The agreement between these assessments was good (98.7%, 95.2 % and 96.1% for MTB, MAC, and MK, respectively) (Table 4). Discussion Morphologic assessment has been used as a rapid, presumptive diagnostic test and a cost-effective guide to the selection of appropriate nucleic acid probes [2,6]. Our study showed high sensitivity (92.9%), specificity (96.4%), and positive predictive value (98%) when using the presence of serpentine cording on microscopy as presumptive identification of MTB positive cultures. Our results showed higher sensitivity and specificity than previous reports. This may reflect the greater number of samples in our study. Dot morphology was present in 82.4% of MAC, also higher than previously reported, and may be due to the heterogeneity and different distribution pattern of serotypes of MAC isolates in Taiwan. The ladder morphology was observed in 80.4% of MK, similar to other reports. So when BDProTecET strips are used to identify MAC and MK, the morphologic characteristics can help reduce costs by selecting 1 appropriate strip rather than 2. The possible reasons for absence of cording morphology in 7.1% of MTB may be (1) the time-to-detection was too early to form serpentine cording and (2) about 50% of non-cording MTB was recorded as ladder morphology. These results suggest difficulty in making a distinction between the 2 morphologies, especially for inexperienced medical technologists. In conclusion, MTB, MAC, and MK have characteristic morphologies that enable their differentiation from other mycobacteria when recovered from broth medium. The high positive predictive value of cording morphology for M. tuberculosis complex allows early presumptive reporting to clinicians. The initial selection of a probe for testing of primary BACTEC MGIT 960 cultures on the basis of microscopic morphology in smears can offer a rapid, reliable and cost-effective approach to the laboratory diagnosis of M. tuberculosis complex, M. avium complex, and M. kansasii. Acknowledgement This study was supported by Kaoshiung Veterans General Hospital grant VGHKS References 1. Gonzalez J, Tudo G, Gomez J, et al. Use of microscopic morphology in smears prepared from radiometric cultures for presumptive identification of Mycobacterium tuberculosis complex, Mycobacterium avium complex, Mycobacterium kansasii and Mycobacterium xenopi. Eur J Clin Microbiol Infect Dis 1998;17: Kaminski DA, Hardy DJ. Selective utilization of DNA probes for identification of Mycobacterium species on the basis of cord formation in primary BACTEC 12B cultures. J Clin Microbiol 1995;33: McCarter YS, Ratkiewicz IN, Robinson A. Cord formation in BACTEC medium is a reliable, rapid method for presumptive identification of Mycobacterium tuberculosis complex. J Clin Microbiol 1998;36: Morris AJ, Reller LB. Reliability of cord formation in BACTEC media for presumptive identification of mycobacteria. J Clin Microbiol 1993;31: Silvia A, Sherry D, Jille C III. Assessment of morphology rapid for presumptive identification of Mycobacterium tuberculosis and Mycobacterium kansasii. J Clin Microbiol 2000;38: Nelson SM, Cartwright CP. Comparison of algorithms for selective use of nucleic-acid probes for identification of Mycobacterium tuberculosis from BACTEC 12B bottles. Diagn Microbiol Infect Dis 1998;31:
MYCOBACTERIA. Pulmonary T.B. (infect bird)
MYCOBACTERIA SPP. Reservoir Clinical Manifestation Mycobacterium tuberculosis Human Pulmonary and dissem. T.B. M. lepra Human Leprosy M. bovis Human & cattle T.B. like infection M. avium Soil, water, birds,
More informationFrances Morgan, PhD October 21, Comprehensive Care of Patients with Tuberculosis and Their Contacts October 19 22, 2015 Wichita, KS
The Laboratory s Role in Caring for Patients Diagnosed with TB Frances Morgan, PhD October 21, 2015 Comprehensive Care of Patients with Tuberculosis and Their Contacts October 19 22, 2015 Wichita, KS EXCELLENCE
More informationOverview of Mycobacterial Culture, Identification, and Drug Susceptibility Testing
Overview of Mycobacterial Culture, Identification, and Drug Susceptibility Testing 1. Essentials for the Mycobacteriology Laboratory: Promoting Quality Practices 1.1 Overview: Mycobacterial Culture, Identification,
More informationTB Laboratory for Nurses
TB Laboratory for Nurses Shea Rabley, RN, MN Consultant Mayo Clinic Center for Tuberculosis 2014 MFMER slide-1 Disclosures None 2014 MFMER slide-2 Objectives Participants will be able to: 1. Name 2 safety
More informationMycobacterial cell wall. Cell Cycle Lengths. Outline of Laboratory Methods. Laboratory Methods
Laboratory Methods Cell Cycle Lengths Generation time (hrs) Days needed for 26 generations (colony) E. coli 0.33 0.36 Nancy Connell, PhD Professor, nfectious Disease Department of Medicine Center for Emerging
More informationLaboratory Diagnostic Techniques. Hugo Donaldson Consultant Microbiologist Imperial College Healthcare NHS Trust
Laboratory Diagnostic Techniques Hugo Donaldson Consultant Microbiologist Imperial College Healthcare NHS Trust Learning Objectives 1) When to consider a diagnosis of TB 2) When to consider a referral
More informationCDPH - CTCA Joint Guidelines Guideline for Micobacteriology Services In California
CDPH - CTCA Joint Guidelines Guideline for Micobacteriology Services In California These guidelines are intended to be used as an educational aid to help clinicians make informed decisions about patient
More informationTB 101 Disease, Clinical Assessment and Lab Testing
TB 101 Disease, Clinical Assessment and Lab Testing Pacific Islands Tuberculosis Controllers Association Conference (PITCA) Clinical Laboratory Breakout None Disclosure Objectives Be able to list and explain
More informationNucleic Acid Amplification Testing for the Diagnosis of TB
Roche Nucleic Acid Amplification Testing for the Diagnosis of TB David Warshauer, PhD Deputy Director, Communicable Diseases Wisconsin State Laboratory of Hygiene 19 th /20 th Century Traditional Algorithm
More informationORIGINAL ARTICLE. Department of Microbiology, Military Medical Academy, Belgrade, Yugoslavia. Clin Microbiol Infect 2002; 8:
ORIGINAL ARTICLE Evaluation of the MB/BacT System for recovery of mycobacteria from clinical specimens in comparison to Lowenstein Jensen medium V. Mirovic and Z. Lepsanovic Department of Microbiology,
More informationResearch Article Factors Associated with Missed Detection of Mycobacterium tuberculosis by Automated BACTEC MGIT 960 System
BioMed Research International Volume 2016, Article ID 5972021, 4 pages http://dx.doi.org/10.1155/2016/5972021 Research Article Factors Associated with Missed Detection of Mycobacterium tuberculosis by
More informationAFB Identification Texas Approach
AFB Identification Texas Approach Ken Jost Texas Department of State Health Services 6th National Conference on Laboratory Aspects of TB June 21, 2010 DSHS-Austin TB Lab Customers & Samples Year 2009 175
More informationThe diagnostic value of gyrb RFLP PCR. Mycobacteria in patients with clinical. in Mazandaran
Mazandaran University of Medical Sciences The diagnostic value of gyrb RFLP PCR test t in differentiation between pathogenic Mycobacteria in patients with clinical suspicions spicions of tuberculosis in
More informationA comparative evaluation of mycobacteria growth indicator tube and Lowenstein-Jensen medium for the isolation of mycobacteria from clinical specimens
Original Article Vol. 29 No. 2 Comparative evaluation of mycobacteria culture:-kaur KP, et al. 67 A comparative evaluation of mycobacteria growth indicator tube and Lowenstein-Jensen medium for the isolation
More informationSupplementary Appendix
Supplementary Appendix This appendix has been provided by the authors to give readers additional information about their work. Supplement to: Cain KP, McCarthy KD, Heilig CM, et al. An algorithm for tuberculosis
More informationStacy White, PhD May 12, TB for Community Providers. Phoenix, Arizona
Role of the Laboratory in TB Diagnosis Stacy White, PhD May 12, 2015 TB for Community Providers May 12, 2015 Phoenix, Arizona EXCELLENCE EXPERTISE INNOVATION Stacy White, PhD has the following disclosures
More informationDiagnosis of TB: Laboratory Ken Jost Tuesday April 1, 2014
TB Nurse Case Management San Antonio, Texas April 1 3, 2014 Diagnosis of TB: Laboratory Ken Jost Tuesday April 1, 2014 Ken Jost, BA has the following disclosures to make: No conflict of interests No relevant
More informationTB/HIV 2 sides of the same coin. Dr. Shamma Shetye, MD Microbiology Metropolis Healthcare, Mumbai
TB/HIV 2 sides of the same coin Dr. Shamma Shetye, MD Microbiology Metropolis Healthcare, Mumbai Global- Tb new cases Diagnosis-Microscopy ZN,Flourescent microscopy(fm) Rapid, inexpensive test Specificity>95%
More informationEvaluation of the Microscopic-Observation. Drug-Susceptibility Assay Drugs Concentration for Detection Of Multidrug-Resistant Tuberculosis
Evaluation of the Microscopic-Observation Drug-Susceptibility Assay Drugs Concentration for Detection Of Multidrug-Resistant Tuberculosis ABSTRACT New diagnostic tools are urgently needed to interrupt
More informationKen Jost, BA, has the following disclosures to make:
Diagnosis of TB Disease: Laboratory Ken Jost, BA May 10, 2017 TB Intensive May 9-12, 2017 San Antonio, TX EXCELLENCE EXPERTISE INNOVATION Ken Jost, BA, has the following disclosures to make: No conflict
More informationReceipt within 1 day of specimen collection. Report AFB b smear result within 1 day from receipt of specimen
Recommendation Promote rapid delivery of specimens to the laboratory Use fluorescent acid-fast staining and promptly transmit results by phone, FAX, or electronically Identify growth as acid-fast and use
More informationPublic Health Mycobacteriology (TB) Laboratory Testing Services
Public Health Mycobacteriology (TB) Laboratory Testing Services Gary Budnick Supervising Microbiologist Connecticut Department of Public Health Laboratory Branch Hartford, Connecticut Specimen Collection
More informationIDENTIFICATION OF M. tuberculosis
Rev. 1 Pag. 1 di 7 Destinatari: Personale del Settore Diagnosi Microbiologica Avanzata e Settore Ricerca Micobatteri CONTENT 1. SCOPE 2. APPLICATION 3. DEFINITIONS AND ABBREVIATIONS 4. RESPONSIBILITIES
More informationMYCOBACTERIOLOGY INTRODUCTION RANGE OF LABORATORY SERVICES
MYCOBACTERIOLOGY INTRODUCTION The Central Tuberculosis Laboratory (CTBL) of the Department of Pathology provides laboratory diagnosis of tuberculosis (TB) and other mycobacterial diseases for all hospitals,
More informationNTM Plus Case Studies
NTM Plus Case Studies Youngmi Kim, Sr. Microbiologist MS, M(ASCP) Case 1 Referred Culture for ID & appropriate susceptibility Case 1 7/7/15: MGIT broth received DOC: 5-30-15 Source: FNA Mesenteric Mass,
More informationMYCOBACTERIOLOGY SERVICE MANUAL
MYCOBACTERIOLOGY SERVICE MANUAL The Office of Laboratory Services (OLS) provides primary isolation and identification of Mycobacterium species in human diagnostic specimens. Reference specimens of AFB
More informationTB Intensive San Antonio, Texas November 11 14, 2014
TB Intensive San Antonio, Texas November 11 14, 2014 Diagnosis of TB: Laboratory Ken Jost, BA November 12, 2014 Ken Jost, BA has the following disclosures to make: No conflict of interests No relevant
More informationEvaluation of the Rapid MGIT TBc Identification Test for Culture Confirmation of Mycobacterium tuberculosis Complex Strain Detection
JOURNAL OF CLINICAL MICROBIOLOGY, Mar. 2011, p. 802 807 Vol. 49, No. 3 0095-1137/11/$12.00 doi:10.1128/jcm.02243-10 Copyright 2011, American Society for Microbiology. All Rights Reserved. Evaluation of
More informationIncreasing Trend of Isolation of Non-Tuberculous Mycobacteria in a Tertiary University Hospital in South Korea
http://dx.doi.org/10.4046/trd.2012.72.5.409 ISSN: 1738-3536(Print)/2005-6184(Online) Tuberc Respir Dis 2012;72:409-415 CopyrightC2012. The Korean Academy of Tuberculosis and Respiratory Diseases. All rights
More informationObjectives. TB Laboratory Methods
TB Laboratory Methods Beverly Metchock, Dr.P.H., D(ABMM) Team Leader, Reference Laboratory, Mycobacteriology Laboratory Branch February 2011 Objectives General overview of mycobacteriology (TB) lab practices
More informationThe MODS Assay for Detection of TB and TB Drug Resistance: A Multi-center Study
The MODS Assay for Detection of TB and TB Drug Resistance: A Multi-center Study microscopic observation drug susceptibility Susan E. Dorman, MD Johns Hopkins University Afranio L. Kritski, MD, PhD Federal
More informationPrinciples of laboratory diagnosis of M. tuberculosis. Anne-Marie Demers, MD, FRCPC 11 September 2017
Principles of laboratory diagnosis of M. tuberculosis Anne-Marie Demers, MD, FRCPC 11 September 2017 QUESTION Which statement is false? 1) A smear can only be on a concentrated specimen 2) It is normal
More informationThe ABC s of AFB s Laboratory Testing for Tuberculosis. Gary Budnick Connecticut Department of Public Health Mycobacteriology Laboratory
The ABC s of AFB s Laboratory Testing for Tuberculosis Gary Budnick Connecticut Department of Public Health Mycobacteriology Laboratory Laboratory TAT Goals Case Study Specimen Collection Testing Contact
More informationMycobacteria & Tuberculosis PROF.HANAN HABIB & PROF ALI SOMILY DEPRTMENT OF PATHOLOGY, MICROBIOLOGY UNIT COLLEGE OF MEDICINE
Mycobacteria & Tuberculosis PROF.HANAN HABIB & PROF ALI SOMILY DEPRTMENT OF PATHOLOGY, MICROBIOLOGY UNIT COLLEGE OF MEDICINE Objectives l Recognize that tuberculosis as a chronic disease mainly affecting
More informationDiagnosis of Extra Pulmonary Tuberculosis By Using Xpert MTB/RIF Assay (CBNAAT) And MGIT Liquid Culture.
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) e-issn: 2279-0853, p-issn: 2279-0861.Volume 17, Issue 9 Ver. 10 (September. 2018), PP 65-70 www.iosrjournals.org Diagnosis of Extra Pulmonary Tuberculosis
More informationReceived 25 March 2011/Returned for modification 9 May 2011/Accepted 25 May 2011
JOURNAL OF CLINICAL MICROBIOLOGY, Aug. 2011, p. 2874 2878 Vol. 49, No. 8 0095-1137/11/$12.00 doi:10.1128/jcm.00612-11 Copyright 2011, American Society for Microbiology. All Rights Reserved. Molecular Detection
More informationTowards Harmonization of Mycobacteriology in TB Trials. Study 31/ACTG 5349 Key Elements of Mycobacteriology Laboratory Procedures
Study 31/ACTG 5349 Key Elements of Mycobacteriology Laboratory Procedures: Towards Harmonization of Mycobacteriology in TB Trials Title Author(s) Study 31/ACTG 5349 Key Elements of Mycobacteriology Laboratory
More informationComparison of Four Decontamination Methods for Recovery
JOURNAL OF CLINICAL MICROBIOLOGY, Feb. 1993, p. 302-306 Vol. 31, No. 2 0095-1137/93/020302-05$02.00/0 Copyright 1993, American Society for Microbiology Comparison of Four Decontamination Methods for Recovery
More informationInternational Journal of Health Sciences and Research ISSN:
International Journal of Health Sciences and Research www.ijhsr.org ISSN: 2249-9571 Original Research Article Laboratory Evaluation of a New Rapid Slide Culture (RSC) Technique for Diagnosis of Extra-
More informationMycobacteriology William H. Benjamin, Jr.
Mycobacteriology William H. Benjamin, Jr. William H. Benjamin, PhD Department of Pathology UAB 1 Mycobacteria sp. Acid Fast Bacilli (AFB) Mycolic acids (C78-91) Waxes Obligate aerobes Slow growing days
More informationUse of the BacT/ALERT MB Mycobacteria Blood Culture System for Detecting ACCEPTED
JCM Accepts, published online ahead of print on December 00 J. Clin. Microbiol. doi:.11/jcm.011-0 Copyright 00, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved.
More informationClinical Evaluation of the Microscopic-Observation Drug-Susceptibility Assay for Detection of Tuberculosis
MAJOR ARTICLE Clinical Evaluation of the Microscopic-Observation Drug-Susceptibility Assay for Detection of Tuberculosis Mayra Arias, 1,a Fernanda C. Q. Mello, 4,a Ada Pavón, 5 Anna Grazia Marsico, 4 Carlos
More informationSchedule of Accreditation issued by United Kingdom Accreditation Service 2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK
2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK Microbiology Department Crawley Hospital West Green Drive Crawley RH11 7DH United Kingdom Contact: Clare Reynolds Tel: +44 (0) 1293 600379
More informationBiology and Medicine
eissn: 09748369 Diagnosis of pulmonary tuberculosis by smear microscopy and culture in a tertiary health care facility Biology and Medicine SI Khatib, MT Williamson, R Singh, JM Joshi Accepted: 28 th Feb
More informationTB Updates for the Physician Rochester, Minnesota June 19, 2009
TB Updates for the Physician Rochester, Minnesota June 19, 2009 Mycobacterial Laboratory Science Update Nancy L. Wengenack, Ph.D. Associate Professor of Laboratory Medicine and Pathology Division of Clinical
More informationReceived 20 April 2004/Returned for modification 14 June 2004/Accepted 30 June 2004
JOURNAL OF CLINICAL MICROBIOLOGY, Oct. 2004, p. 4599 4603 Vol. 42, No. 10 0095-1137/04/$08.00 0 DOI: 10.1128/JCM.42.10.4599 4603.2004 Copyright 2004, American Society for Microbiology. All Rights Reserved.
More informationComparison of recoveries of Mycobacterium tuberculosis using the automated BACTEC MGIT 960 System and Lowenstein Jensen medium
Comparison of recoveries of Mycobacterium tuberculosis using the automated System and Lowenstein Jensen medium Mo. A.AL-Mazini T. Bukeet A. Abdul Kareem Coll. of Sci./ Unive Basrah Abstract We examined
More informationGeneral Session IV - Dale Schwab April 20, 2017
The Culture of Clinical Commercial Labs Presented by: Dale Schwab PhD, Senior Scientific Director, Infectious Disease April 20, 2017 Objectives Challenges for the reference laboratory in MTB diagnosis/opportunities
More informationM. avium M. tuberculosis. number of vials Days
252 BJID 2001; 5 (August) Detection of Mycobacteria in the Bloodstream of Patients With Acquired Immunodeficiency Syndrome in a University Hospital in Brazil Carmen Paz Oplustil, Olavo H.M. Leite, Marilia
More informationRole of the Laboratory in TB Diagnosis and Management
Role of the Laboratory in TB Diagnosis and Management Michael Pentella, Ph.D., D(ABMM), CIC Associate Director University Hygienic Lab Clinical Associate Professor, College of Public Health, University
More informationComparison of mechanical disruption techniques for the rapid inactivation of
JCM Accepted Manuscript Posted Online 10 August 2016 J. Clin. Microbiol. doi:10.1128/jcm.01096-16 Copyright 2016, American Society for Microbiology. All Rights Reserved. 1 2 3 4 5 6 7 8 9 10 Comparison
More informationOriginal Article Evaluation of Xpert MTB/RIF in detection of pulmonary and extrapulmonary tuberculosis cases in China
Int J Clin Exp Pathol 2017;10(4):4847-4851 www.ijcep.com /ISSN:1936-2625/IJCEP0045802 Original Article Evaluation of Xpert MTB/RIF in detection of pulmonary and extrapulmonary tuberculosis cases in China
More informationXpert MTB/RIF Training. Indira Soundiram 2012
Xpert MTB/RIF Training Indira Soundiram 2012 A Better Way to Platform Design GeneXpert Infinity-48 GeneXpert Module GX-I GX-II GX-IV GX-XVI 2 Defining Molecular Diagnostics Any Test Any Time Any Sample
More informationWELCOME. Lab Talk: What a Nurse Hears. April 18, NTNC Annual Meeting Lab Talk: What a Nurse Hears
Lab Talk: What a Lab Talk: What a Max Salfinger, MD, FIDSA, FAAM Executive Director, Advanced Diagnostic Laboratories Laboratory Director, Mycobacteriology & Pharmacokinetics National Jewish Health Lisa
More informationTB is Local. Barry Chin, Boston Globe, 10/15/2008. * BUT only in appropriate setting
Diagnosis of Tuberculosis 2012 New Tools, Tricks, Thinking? John Bernardo, M.D. Pulmonary Section, Boston University School of Medicine Massachusetts Department of Public Health Objectives To review the
More informationMODS KIT ti A Culture of Service
101311ti A ulture of Service Microscopic Observation Drug Susceptibility Assay A standardized and accelerated liquid culture and direct susceptibility testing method for Mycobacterium tuberculosis. One-third
More informationMycobacteria Diagnostic Testing in Manitoba. Dr. Michelle Alfa Medical Director, DSM Clin Micro Discipline
Mycobacteria Diagnostic Testing in Manitoba Dr. Michelle Alfa Medical Director, DSM Clin Micro Discipline Acknowlegements: Assunta Rendina: Charge Tech HSC Lab Joyce Wolf & Dr. Meenu Sharma: NML Dr. Kanchana
More informationNational TB Services Survey Report
National TB Services Survey Report APHL Report Diagnosing TB JUNE 2012 The Association of Public Health Laboratories (APHL) is a national non-profit organization dedicated to working with members to strengthen
More informationDOWNLOAD OR READ : NONTUBERCULOUS MYCOBACTERIA NTM PDF EBOOK EPUB MOBI
DOWNLOAD OR READ : NONTUBERCULOUS MYCOBACTERIA NTM PDF EBOOK EPUB MOBI Page 1 Page 2 nontuberculous mycobacteria ntm nontuberculous mycobacteria ntm pdf nontuberculous mycobacteria ntm patients and those
More informationMGIT 960) for Recovery of Mycobacteria from 9558 Extrapulmonary ACCEPTED. Specimens including Urine Samples
JCM Accepts, published online ahead of print on September 00 J. Clin. Microbiol. doi:./jcm.00-0 Copyright 00, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved.
More informationUpdate on MALDI-TOF Validation
Update on MALDI-TOF Validation Donald Busalacchi B.S. Microbiologist- WSLH WMLN 2015 Review Matrix-Assisted Laser Desorption Ionization Time-of- Flight A form of Mass Spectroscopy utilizing a soft ionization
More informationUse of BACTEC MGIT 960 for Recovery of Mycobacteria from Clinical Specimens: Multicenter Study
JOURNAL OF CLINICAL MICROBIOLOGY, Nov. 1999, p. 3578 3582 Vol. 37, No. 11 0095-1137/99/$04.00 0 Copyright 1999, American Society for Microbiology. All Rights Reserved. Use of BACTEC MGIT 960 for Recovery
More informationRapid Detection of Tuberculous and Non-Tuberculous Mycobacteria by Microscopic Observation of Growth on Middlebrook 7Hll Agar
6 Article Vol. 14. No. 1 Eur. J. Clin. Micr0biol. Infect. Dis., 1995, 14:6-10 Rapid Detection of Tuberculous and Non-Tuberculous Mycobacteria by Microscopic Observation of Growth on Middlebrook 7Hll Agar
More informationQUALITY CONTROL IN ISOLATION AND IDENTIFICATION OF MYCOBACTERIA FROM CLINICAL SPECIMENS
QUALITY CONTROL IN ISOLATION AND IDENTIFICATION OF MYCOBACTERIA FROM CLINICAL SPECIMENS Dr. C. N. Paramasivam Deputy Director (Bacteriology) Tuberculosis Research Centre Spurtank Road, Chetput, Madras
More informationDiagnosis of drug resistant TB
Diagnosis of drug resistant TB Megan Murray, MD, ScD Harvard School of Public Health Brigham and Women s Hospital Harvard Medical School Broad Institute Global burden of TB 9 million new cases year 2 million
More informationEVALUATION OF THE BACTEC MGIT 960 TB SYSTEM FOR RECOVERY
Indian Journal of Medical Microbiology, (2009) 27(3): 217-21 Original Article EVALUATION OF THE BACTEC MGIT 960 TB SYSTEM FOR RECOVERY AND IDENTIFICATION OF MYCOBACTERIUM TUBERCULOSIS COMPLEX IN A HIGH
More informationINTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH AND BIO-SCIENCE
INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH AND BIO-SCIENCE MYCOBACTERIUM GROWTH INDICATOR TUBE (MGIT) IN COMPARISON TO LOWENSTEIN JENSEN S MEDIUM FOR ISOLATION OF MYCOBACTERIUM SPECIES FROM URINE
More informationPelin Yuksel*, Suat Saribas and Yasar Bagdatli
African Journal of Microbiology Research Vol. 5(9), pp. 985-989, 4 May, 2011 Available online http://www.academicjournals.org/ajmr DOI: 10.5897/AJMR10.008 ISSN 1996-0808 2011 Academic Journals Full Length
More informationGuidelines for Tuberculosis Control in New Zealand 2010 Chapter 11: Mycobacteriology: Laboratory Methods and Standards
Guidelines for Tuberculosis Control in New Zealand 2010 Chapter 11: Mycobacteriology: Laboratory Methods and Standards Ministry of Health. 2010. Guidelines for Tuberculosis Control in New Zealand 2010.
More informationLatent Tuberculosis Infections Controversies in Diagnosis and Management Update 2016
Latent Tuberculosis Infections Controversies in Diagnosis and Management Update 2016 Randy Culpepper, MD, MPH Deputy Heath Officer/Medical Director Frederick County Health Department March 16, 2016 2 No
More informationDiagnosis of Pulmonary Tuberculosis Using Conventional Smear Microscopy and Culture Methods in a Tertiary Care Hospital
Diagnosis of Pulmonary Tuberculosis Using Conventional Smear Microscopy and Culture Methods in a Tertiary Care Hospital 1 SM.Nachammai, 2 Dr.Mangayarkarasi.V (MD) Abstract: Tuberculosis, one of the oldest
More informationDiagnosis of TB: Laboratory Ken Jost Tuesday April 9, 2013
TB Nurse Case Management San Antonio, Texas April 9-11, 2013 Diagnosis of TB: Laboratory Ken Jost Tuesday April 9, 2013 Ken Jost has the following disclosures to make: No conflict of interests No relevant
More informationThe MycoDDR Product Line is Essential for Mycobacteria Survival and Recovery
The MycoDDR Product Line is Essential for Mycobacteria Survival and Recovery Crider, B.J., Neary, B.P., Bauman, S.K. Abstract Tuberculosis (TB) is a serious disease that affects a significant portion of
More informationMulti-Site Performance Summary of. AEROSPRAY TB SLIDE STAINER/CYTOCENTRIFUGE (Model 7722)
Multi-Site Performance Summary of AEROSPRAY TB SLIDE STAINER/CYTOCENTRIFUGE (Model 7722) Abstract The new Aerospray TB Slide Stainer/Cytocentrifuge - Model 7722 (ELITechGroup Inc., www.elitechgroup.com)
More informationChapter 4 Diagnosis of Tuberculosis Disease
Chapter 4 Diagnosis of Tuberculosis Disease Table of Contents Chapter Objectives.... 75 Introduction.... 77 Medical Evaluation.......................................................... 78 Chapter Summary...
More informationClinical and Public Health Impact of Nucleic Acid Amplification Tests (NAATs) for Tuberculosis
Clinical and Public Health Impact of Nucleic Acid Amplification Tests (NAATs) for Tuberculosis Amit S. Chitnis, MD, MPH; Pennan M. Barry, MD, MPH; Jennifer M. Flood, MD, MPH. California Tuberculosis Controllers
More informationComparison of conventional methods with automation and card ELISA test for the diagnosis of Pulmonary Tuberculosis
ISSN: 2319-7706 Volume 3 Number 10 (2014) pp. 401-408 http://www.ijcmas.com Original Research Article Comparison of conventional methods with automation and card ELISA test for the diagnosis of Pulmonary
More informationMIC = Many Inherent Challenges Sensititre MIC for Antimicrobial Susceptibility Testing of Mycobacterium tuberculosis complex
MIC = Many Inherent Challenges Sensititre MIC for Antimicrobial Susceptibility Testing of Mycobacterium tuberculosis complex Marie Claire Rowlinson, PhD D(ABMM) Florida Bureau of Public Health Laboratories
More informationTuberculosis Reference Laboratory, NIDCH, Mahakhali, Dhaka.
Bangladesh J Med Microbiol 2011; 05 (02): 06-10 Bangladesh Society of Medical Microbiologists Original Article A rapid Drug Susceptibility Test (DST) for detection of Multi-Drug Resistant (MDR) Mycobacterium
More information2008/7/21. An Overview. National Taiwan University College of Medicine 西元前 年. 木乃伊 (Nesperhan, priest of Amun)
Rapid Diagnosis of Tuberculosis An Overview Po-Ren Hsueh National Taiwan University College of Medicine 埃及時代 西元前 3700-1000 年 土偶 木乃伊 (Nesperhan, priest of Amun) 1 Dixon B. Lancet Infect Dis 2007;7:444-5.
More informationWSLH Testing and Surveillance Updates
WSLH Testing and Surveillance Updates Wisconsin Mycobacteriology Laboratory Network annual conference November 4, 2015, Madison, WI Updates Outline Collection and Transport Smear and Culture Nucleic Acid
More information/01/$ DOI: /JCM Copyright 2001, American Society for Microbiology. All Rights Reserved.
JOURNAL OF CLINICAL MICROBIOLOGY, Feb. 2001, p. 651 657 Vol. 39, No. 2 0095-1137/01/$04.00 0 DOI: 10.1128/JCM.39.2.651 657.2001 Copyright 2001, American Society for Microbiology. All Rights Reserved. Comparison
More informationTB Nurse Case Management Davenport, Iowa September 27 28, 2011
TB Nurse Case Management Davenport, Iowa September 27 28, 2011 Role of the Laboratory in the TB Diagnosis and Management Michael Pentella, PhD, MS, SM(ASCP), CIC, D(ABMM) September 27, 2011 Michael Pentella,
More informationMedical Bacteriology- lecture 13. Mycobacterium Actinomycetes
Medical Bacteriology- lecture 13 Mycobacterium Actinomycetes Mycobacterium tuberculosis Large, very weakly gram positive rods, Obligate aerobes, related to Actinomycetes, non spore forming, non motile
More informationCharacteristics of Mycobacterium
Mycobacterium Characteristics of Mycobacterium Very thin, rod shape. Culture: Aerobic, need high levels of oxygen to grow. Very slow in grow compared to other bacteria (colonies may be visible in up to
More informationDiagnosis and Management of Active Tuberculosis
Diagnosis and Management of Active Tuberculosis Zelalem Temesgen, MD FIDSA AAHIVS 2013 MFMER slide-1 Disclosures None 2013 MFMER slide-2 Objectives By the end of this session, participants should be able
More informationClinical Diagnostics Research Consortium (CDRC)
Clinical Diagnostics Research Consortium (CDRC) Funded through a contract from U.S. National Institute of Allergy and Infectious Disease, National Institutes of Health Mission: to evaluate novel TB diagnostics
More informationShannon Kasperbauer, M.D. National Jewish Health University of Colorado Health Sciences Center. Property of Presenter. Not for Reproduction
Shannon Kasperbauer, M.D. National Jewish Health University of Colorado Health Sciences Center Consultant: Johnson and Johnson Speaker/consultant: Insmed Examine characteristics of the RGM Define the main
More informationMycobacterium tuberculosis direct test compared with
ORIGINAL ARTICLE Clinical utility of the Gen-Probe amplified Mycobacterium tuberculosis direct test compared with smear and culture for the diagnosis of pulmonary tuberculosis Claudio Piersimoni ', Pievgiovgio
More informationComparative Assessment of Five Laboratory Techniques in the Diagnosis of Pulmonary Tuberculosis in Abuja
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) e-issn: 2279-0853, p-issn: 2279-0861.Volume 13, Issue 9 Ver. II (Sep. 2014), PP 73-78 Comparative Assessment of Five Laboratory Techniques in the
More informationNTM Mycobacterium avium Mycobacterium intracellulare Complex
2006 67 NTM Mycobacterium aviummycobacterium intracellulare Complex 1) 1) 1) 1) 2) 1) 2) 17 8 29 18 2 9 Mycobacterium avium Mycobacterium intracellulare 6 MIC NTM MIC 1 3 NTM 5 MIC MIC M. avium 1 M. intracellulare
More informationNucleic Acid Amplification Test for Tuberculosis. Heidi Behm, RN, MPH Acting TB Controller HIV/STD/TB Program Oregon, Department of Health Services
Nucleic Acid Amplification Test for Tuberculosis Heidi Behm, RN, MPH Acting TB Controller HIV/STD/TB Program Oregon, Department of Health Services What is this test? Nucleic Acid Amplification Test (NAAT)
More informationA retrospective evaluation study of diagnostic accuracy of Xpert MTB/RIF assay, used for detection of Mycobacterium tuberculosis in Greece
Örebro University School of Health and Medical Science Biomedical Laboratory Science Programme 180 credits Degree project in biomedical laboratory science, advanced course, 15 credits May 21, 2015 A retrospective
More informationFrances Jamieson, MD and Kevin May, BSc November 15 th,
Frances Jamieson, MD and Kevin May, BSc November 15 th, 2016 1 TB Elimination: Back To Basics Financial Interest Disclosure (over the past 24 months) Dr. Frances amieson Company Speaker Advisory Research
More informationMedical Bacteriology- Lecture 10. Mycobacterium. Actinomycetes. Nocardia
Medical Bacteriology- Lecture 10 Mycobacterium Actinomycetes Nocardia 1 Mycobacterium Characteristics - Large, very weakly gram positive rods - Obligate aerobes, related to Actinomycetes - Catalase positive
More informationComparison of the Xpert MTB/RIF Assay and Real-time PCR for the Detection of Mycobacterium tuberculosis
Available online at www.annclinlabsci.org Annals of Clinical & Laboratory Science, vol. 45, no. 3, 2015 327 Comparison of the Xpert MTB/RIF Assay and Real-time PCR for the Detection of Mycobacterium tuberculosis
More informationMycobacteriosis in patients with fever of unknown origin
FUO J Microbiol with mycobacteriosis Immunol Infect 2003;36:248-253 Mycobacteriosis in patients with fever of unknown origin Chuen Chin, Susan Shin-Jung Lee, Yao-Shen Chen, Shue-Ren Wann, Hsi-Hsun Lin,
More informationTB Nurse Case Management. March 7-9, Diagnosis of TB: Ken Jost Wednesday March 7, 2012
TB Nurse Case Management San Antonio, Texas March 7-9, 2012 Diagnosis of TB: Laboratory Ken Jost Wednesday March 7, 2012 Ken Jost has the following disclosures to make: No conflict of interests No relevant
More informationMYCOBACTERIUM. Mycobacterium Tuberculosis (Mtb) nontuberculous mycobacteria (NTM) Mycobacterium lepray
MYCOBACTERIUM nontuberculous mycobacteria (NTM) Mycobacterium Tuberculosis (Mtb) Mycobacterium lepray 1-tubercle bacilli are thin 2- straight rods 3- obligate aerobes 4- derive energy from the oxidation
More information2 ND YEAR RESEARCH ELECTIVE RESIDENT S JOURNAL Volume X, Ellie R. Carmody. A. Background and Study Rationale.
Operating characteristics and effectiveness of a screening algorithm for the detection of active tuberculosis in adult outpatients with HIV infection in Mozambique Ellie R. Carmody A. Background and Study
More information