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Canadian Tuberculosis
Standards 5th Edition
Table of Contents |
| PREFACE | ||
| ACKNOWLEDGEMENTS | ||
| I | EPIDEMIOLOGY | |
| I-A |
The Epidemiology
of Tuberculosis in Canada |
|
| II | MEDICAL ASPECTS OF TUBERCULOSIS | |
| II-A |
Bacteriologic Aspects
of Tuberculosis and |
|
| II-B | Transmission
and Pathogenesis of Tuberculosis Richard Long and Peter Jessamine |
|
| II-C | Diagnosis
of Tuberculosis Infection and Disease Dick Menzies and Louise Pourier |
|
| II-D | Nonrespiratory
(Extrapulmonary) Tuberculosis Richard Long |
|
| II-E | Treatment
of Tuberculosis Disease and Infection Vernon Hoeppner, Darcy Marciniuk and Earl Hershfield |
|
| II-F | Drug-Resistant
Tuberculosis Richard Long and Monica Avendano |
|
| II-G | Pediatric
Tuberculosis Mireille Lemay, Bruce Tapiero and Victor Chernick |
|
| II-H | Tuberculosis
and Human Immunodeficiency Virus Stanley Houston, Kevin Schwartzman, Paul Brassard, Monica Avendano and Richard Long |
|
| II-I | Nontuberculous
Mycobacteria Anne Fanning, Robert Cowie, Stephen Shafran and David Haldane |
|
| III | PUBLIC HEALTH ASPECTS OF TUBERCULOSIS | |
| III-A | The
Role of Public Health in Tuberculosis Control Monika Naus and Donald Enarson |
|
| III-B |
Contact Follow-up
and Outbreak Management |
|
| III-C | Surveillance
and Screening in Tuberculosis Control Wendy Wobeser, Lilian Yuan and Barbara Yaffe |
|
| III-D |
Tuberculosis Control
in Canadian Health Care Institutions |
|
| III-E | Bacille
Calmette-Guérin Vaccination Kevin Elwood |
|
| APPENDIX A | ||
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National guidelines for the investigation and follow-up of individuals who were placed under surveillance for tuberculosis after arrival in Canada |
||
| APPENDIX B | ||
| Definition of Terms | ||
| APPENDIX C | ||
| The Canadian Tuberculosis Surveillance Systems | ||
| APPENDIX D | ||
| Contributors | ||
| APPENDIX D | ||
| INDEX | ||
Editor:
Richard Long, MD, University of Alberta
Chairman, Tuberculosis Committee, Canadian Thoracic SocietyAssociate Editors:
Victor Chernick, MD, University of Manitoba
Kevin Elwood, MD, BC Centre for Disease Control Society
David Haldane, MD, Dalhousie University
Vernon Hoeppner, MD, University of Saskatchewan
Stanley Houston, MD, University of Alberta
Dick Menzies, MD, McGill University
Monika Naus, MD, Ontario Ministry of Health and Long Term Care
Howard Njoo, MD, Health Canada
Wendy Wobeser, MD, Queen's UniversityProject Coordinator:
Valoree McKay, Administrator,
Societies and Special Projects, Canadian Lung Association
* A joint production of the Canadian Lung Association/Canadian Thoracic Society and Tuberculosis Prevention and Control, Centre for Infectious Disease Prevention and Control, Health Canada
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Preface
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Since the publication of the last edition of the Canadian Tuberculosis Standards of the Canadian Lung Association/Canadian Thoracic Society (CLA/CTS), there has been renewed interest in the global resurgence of tuberculosis. In Canada, the epidemiology of tuberculosis reflects the many important challenges facing tuberculosis control today: an increasing proportion, now 64%, of all patients with tuberculosis in Canada are foreign-born; there has been limited success in reducing the incidence of tuberculosis among Aboriginal Peoples, particularly in western Canada and the territories; TB-HIV co-infection and drug resistance are growing problems. As a result, there has been increasing collaboration between the various tuberculosis stakeholders in the country, including provincial/territorial tuberculosis control programs, Health Canada, Citizenship and Immigration Canada and the CLA/CTS. It is altogether fitting, therefore, that this, the 5th edition of the Standards, has been co-produced by CLA/CTS and the Division of Tuberculosis Prevention and Control at the Centre for Infectious Disease Prevention and Control, Health Canada.
Some may ask, why a 5th edition of the Standards in such close succession to the 4th, published in 1996? Perhaps the best answer is the need to prepare ourselves in the new millennium to better respond to two major tuberculosis elimination initiatives: 1. A National Tuberculosis Elimination Strategy, issued by Medical Services Branch, Health Canada, in 1992 with the aim of eliminating TB in First Nations peoples by the year 2010, and 2. Proceedings of the National Consensus Conference on Tuberculosis, held in 1997 and sponsored by Health Canada, where an interim elimination goal of a 5% reduction in the number of TB cases in Canada each year was agreed on.
Historically, the Canadian medical and public health community has had a genuine interest in tuberculosis, and many notable persons and organizations have made significant regional, national and international contributions in the field. The present document draws upon a cross-section of current Canadian epidemiologic, medical microbiologic, respirologic, infectious disease and public health expertise in tuberculosis. Departures in content, layout and design from the last edition include the following:
| 1. | The grouping of chapters into three categories: I. Epidemiology of Tuberculosis, II. Medical Aspects of Tuberculosis, and III. Public Health Aspects of Tuberculosis. | |
| 2. | The addition of three new chapters to the medical section: II-D. “Nonrespiratory (Extrapulmonary) Tuberculosis”, II-F. “Drug-resistant Tuberculosis”, and II-G. “Pediatric Tuberculosis”. | |
| 3. | An increased emphasis on the public health aspects of TB control with the addition of a new chapter, III-A, “The Role of Public Health in Tuberculosis Control”, which brings together the various functions of public health that are distinct from the activities carried out by clinical service providers. | |
| 4. | The highlighting of treatment or preventive therapy options with summary points and levels of evidence, the latter categorized as grades I, II or III according to Canada Communicable Disease Report, Vol. 20(17), 15 September, 1994. | |
| Level 1 | Evidence from at least one properly randomized, controlled trial. | |
| Level 2 | Evidence from at least one well-designed clinical trial without randomization, from cohort or case-controlled analytic studies, preferably from more than one centre, from multiple time series or from dramatic results in controlled experiments. | |
| Level 3 | Evidence from opinions of respected authorities on the basis of clinical experience, descriptive studies, or reports of expert committees. | |
| 5. | The citing of references in the text with particular emphasis on Canadian content. | |
As in previous editions of the Standards, the text is aimed primarily at the nonspecialist physician and public health nurse. More figures, tables, and flow charts have been added to facilitate comprehension. Provided in Appendix B are a list of definitions of those terms that require precise explanation, and in Appendix C, copies of the various forms used in the national tuberculosis surveillance systems. As recommended in the past, if specific concerns remain after review of the Standards, the reader is advised to seek the expertise of the appropriate public health agency.
Richard Long, BSc, MD, FRCPC, FCCP
Editor
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Acknowledgements
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The editor and associate editors of this 5th
edition of the Canadian Tuberculosis Standards
would like to thank all those who contributed directly to the completion of
this work — they are listed in Appendix D — as well as those who contributed
indirectly, such as former authors and peer reviewers. Their input into the
various chapters is greatly appreciated. We would also like to express our
gratitude to Dr. Mark FitzGerald, editor of the 4th edition of the Standards,
for his helpful suggestions regarding the content and layout of this edition,
and to Michele Zielinski and Susan Falconer of the University of Alberta for
their tireless editorial assistance. Production of this edition was capably
coordinated by Valoree McKay, Brian Graham and the staff of the Canadian Lung
Association as well as Howard Njoo and Penny Nault of Tuberculosis Prevention
and Control, Centre for Infectious Disease Prevention and Control, and the
staff of the Documents Dissemination Division, Management Planning and Operations
Directorate, Population and Public Health Branch, Health Canada.