Tuberculosis
- Topics
- Basic TB Facts
- Treatment
- Testing & Diagnosis
- TB & HIV Coinfection
- Infection Control & Prevention
- Drug-Resistant TB
- TB in Specific Populations
- African-American Community
- Correctional Facility Staff & Inmates
- Table of Contents
- Introduction
- Strengthen TB Information Systems and Program Assessment
- Strengthen TB Environmental Controls and Isolation Practices
- Provide More Comprehensive and Timely Screening and Diagnostic Evaluations
- Develop and Strengthen Contact Investigation Protocols
- Increase HIV Counseling and Testing
- Increase Staff Training
- Strengthen Collaboration Between Health Departments and Jails
- International Travelers
- Pregnancy
- Vaccines & Immunizations
- Laboratory Information
- Drug Susceptibility Testing
- High Performance Liquid Chromatography (HPLC)
- The Uses of Nucleic Acid Amplification Tests for the Diagnosis of TB
- Rapid Molecular Testing to Detect Drug-Resistant TB in the US
- Executive Summary
- Introduction
- Background on Tests for Molecular Detection of DR
- General Considerations and Principles for a Molecular DR Testing Service�
- Possible Scenarios and Scope of Testing for a Molecular DR Testing Service
- Research Needs
- General Recommendations of the Expert Panel
- Communication Plan for the Report
- Recommendations
- References
- Panel Members and CDC Participants
- Appendix 1
- Appendix 2
- Appendix 3
- Interim Laboratory Biosafety Guidance for XDR Mycobacterium tuberculosis strains
- Research
- TB Epidemiologic Studies Consortium
- Background
- Infrastructure
- Research Projects
- Publications
- Meetings
- Directory
- TBESC Committee Members
- Contact TBESC
- Prospective Evaluation of Immunogenetic and Immunologic Markers for Susceptibility to Tuberculosis Infection and Progression from M. Tuberculosisinfection to active TB
- Zero Tolerance for Pediatric TB
- Models for Incorporating HIV Counseling, Testing, and Referral into Tuberculosis Contact Investigations
- Prevalence of Latent TB Infection Among High Risk Populations in the United States
- Regional Capacity-Building in Low-Incidence Areas
- Use of Network Analysis Methods to Characterize M. tuberculosis Transmission Patterns Among Women and Other High-Risk Populations
- An Analysis of Molecular Epidemiology of Multi-Drug Resistant M. tuberculosisin the United States
- Missed Opportunities for TB Prevention in Foreign-Born Population in the United States and Canada
- New Model for Assessing TB Surveillance and Action Performance and Cost
- Addressing TB Among African Americans in the Southeast: Identifying and Overcoming Barriers to Treatment Adherence for Latent TB Infection and TB Disease
- Assessing the TB Knowledge, Attitudes, Beliefs, and Practices Among Private Providers Serving Foreign-born Populations at Risk for TB
- Factors Associated with Acceptance of, Adherence to and Toxicity From Treatment for Latent TB Infection and Pilot Study of Treatment for Latent TB Infection Effectiveness
- Culturally Appropriate TB Educational Materials for Leaders and Staff of Hispanic Service Organizations
- Enhancing TB Programs� Capacity for Self-Evaluation: Testing New Tools and Developing an Evaluation Toolkit
- African Refugee Women�s Health Improvement Project
- Evaluation of the TK Medium: A New Rapid Solid Culture System for Tuberculosis
- Evaluation of New Interferon-y Release Assays in the Diagnosis of Latent TB Infection in Health Care Workers
- TB Trials Consortium
- Behavioral & Social Science Research
- TB Epidemiologic Studies Consortium
- Data & Statistics
- Education & Training
- Resources for TB Programs
- Publications & Products
- Fact Sheets
- General
- Fact sheets - Spanish
- TB - General Information
- The Difference Between Latent TB Infection and Active TB Disease
- A Global Perspective on TB
- Tuberculosis Information for Employers in Non-Healthcare Settings
- Tuberculosis Information for International Travelers
- TB Can Be Treated
- Exposure to TB
- TB and HIV/AIDS
- You Can Prevent TB
- Testing for TB
- Tuberculosis: informaci�n general
- Diferencia entre la infecci�n de tuberculosis latente y enfermedad de tuberculosis activa
- Informaci�n sobre la tuberculosis para los viajeros internacionales
- Exposición a la tuberculosis
- Usted puede prevenir la tuberculosis
- La tuberculosis puede ser tratada
- Tuberculosis y VIH/SIDA
- Usted puede prevenir la tuberculosis
- Pruebas para detectar la tuberculosis
- Data & Statistics
- A Global Perspective on TB
- Trends in Tuberculosis – United States
- The Revised Report of Verified Case of Tuberculosis
- The National Tuberculosis Indicators Project (NTIP)
- National Tuberculosis Indicators Project (NTIP): Frequently Asked Questions
- TB Genotyping
- TB Genotyping Information Management System (TB-GIMS)
- Drug-Resistant TB
- Multidrug-Resistant Tuberculosis (MDR TB)
- Extensively Drug-Resistant Tuberculosis (XDR TB)
- CDC’s Role in Preventing Extensively Drug-Resistant Tuberculosis (XDR TB)
- Tuberculosis multirresistente (MDR)
- Tuberculosis extremadamente resistente (XDR)
- El papel de los CDC en la prevenci�n de la tuberculosis extremadamente resistente (XDR)
- Infection Control & Prevention
- TB in Specific Populations
- Tuberculosis Information for Employers in Non-Healthcare Settings
- Tuberculosis in Minorities
- Tuberculosis Information for International Travelers
- TB and HIV/AIDS
- Recommendations for Human Immunodeficiency Virus (HIV) Screening in Tuberculosis (TB) Clinics
- Treatment of Drug-Susceptible Tuberculosis Disease in HIV-Infected Persons
- Tuberculosis in Blacks
- Tuberculosis and Pregnancy
- Tuberculosis y embarazo
- Treatment
- TB Can Be Treated
- Treatment of Latent TB Infection
- Treatment of Latent Tuberculosis Infection: Maximizing Adherence
- Treatment Options for Latent Tuberculosis Infection
- Treatment of Drug-Resistant Tuberculosis
- Treatment of Drug-Susceptible Tuberculosis Disease in Persons Not Infected with HIV
- Treatment of Drug-Susceptible Tuberculosis Disease in HIV-Infected Persons
- Tratamiento de la infecci�n de tuberculosis latente
- Testing & Diagnosis
- TB Can Be Treated
- Testing for TB
- Recommendations for Human Immunodeficiency Virus (HIV) Screening in Tuberculosis (TB) Clinics
- QuantiFERON®-TB Gold Test
- Tuberculin Skin Testing
- Diagnosis of Tuberculosis Disease
- Targeted Tuberculin Testing and Interpreting Tuberculin Skin Test Results
- Prueba de QuantiFERON�-TB Gold
- Prueba cutánea de la tuberculina
- Diagnóstico de la tuberculosis activa
- Vaccines & Immunizations
- General
- Guidelines
- Guides & Toolkits
- Newsletters
- Pamphlets, Brochures, Booklets
- PDA Application
- Posters
- Reports & Articles
- Morbidity and Mortality Weekly Reports (MMWRs)
- Contact Investigations
- Control and Elimination
- Data & Statistics
- Drug-Resistant Tuberculosis
- Infection Control & Prevention
- Laboratory
- TB in Specific Populations
- Foreign-Born
- High-Risk Settings
- Homeless
- International
- Occupational Groups
- Travel
- TB & HIV
- Testing & Diagnosis
- Treatment
- LTBI Updates
- Vaccines & Immunizations
- World TB Day
- DTBE Authored Journal Articles
- Morbidity and Mortality Weekly Reports (MMWRs)
- Slide Sets
- Guidelines for Preventing the Transmission of M. TB in Health care Settings
- Investigation of Contacts of Persons with Infectious TB
- Text-Only version
- Introduction
- Decisions to Initiate a Contact Investigation
- Investigating the Index Patient and Sites of Transmission
- Assigning Priorities to Contacts
- Diagnostic and Public Health Evaluation of Contacts
- Medical Treatment for Contacts with LTBI
- When to Expand a Contact Investigation
- Communicating Through the News Media
- Data Management and Evaluation of Contact Investigations
- Confidentiality and Consent in Contact Investigations
- Staff Training for Contact Investigations
- Contact Investigations in Special Circumstances
- Source-Case Investigations
- Cultural Competency and Social Network Analysis
- Resources
- Epidemiology of Pediatric Tuberculosis in the United States
- Text-Only version
- Introduction
- Pediatric TB Cases by Age and Race
- Pediatric TB Cases by Origin of Birth
- Pediatric Cases, Percentages and Rates by States
- Pediatric TB Cases by Case Verification Criterion and Site of Disease
- Pediatric TB Cases in Specific Groups
- Pediatric TB Cases Case Completion
- Slide 1
- Slide 2
- Slide 3
- Slide 4
- Slide 5
- Slide 6
- Slide 7
- Slide 8
- Slide 9
- Slide 10
- Slide 11
- Slide 12
- Slide 13
- Slide 14
- Slide 15
- Slide 16
- Slide 17
- Slide 18
- Slide 19
- Slide 20
- Slide 21
- Slide 22
- Slide 23
- Slide 24
- Slide 25
- Slide 26
- Slide 27
- Slide 28
- Slide 29
- Slide 30
- Slide 31
- Treatment of TB
- Targeted Tuberculin Testing and Treatment of Latent Tuberculosis Infection
- Videos, DVDs, CD Roms
- Podcasts
- Web-Based Courses & Webinars
- Fact Sheets
- Events
- Links
- About Us
- Mission Statement and Activities
- Organization Chart
- Advisory Groups
- Federal TB Task Force
- Table of Contents
- Executive Summary
- Introduction
- Chronology in the Development of This Report
- Strategies for Maintaining Control of TB
- Strategies for Accelerating the Decline of TB
- Activities for Developing New Tools
- Global U.S. Actions
- Assessing the Impact of Actions Taken
- Federal TB Task Force Members and Others Involved in the Development of This Report
- Glossary
- References
- Federal TB Task Force Roster
- Table of Contents
- Executive Summary
- Introduction
- How to Eliminate TB? – The IOM Report
- Why Eliminate TB? – Rationale for Elimination
- Who Will Lead? – CDC's Response
- Goal I: Maintain control of TB
- Goal II: Accelerate the decline
- Goal III: Create new tools
- Goal IV: Reduce the global burden of TB
- Goal V: Summon and sustain support
- Goal VI: Track progress
- References
- Federal TB Task Force
- Funding
Fact Sheets
Diagnosis of Tuberculosis Disease
When Should You Suspect Tuberculosis (TB)?
TB is a disease caused by Mycobacterium tuberculosis. TB disease should be suspected in persons who have the following symptoms:
- Unexplained weight loss
- Loss of appetite
- Night sweats
- Fever
- Fatigue
If TB disease is in the lungs (pulmonary), symptoms may include:
- Coughing for ³ 3 weeks
- Hemoptysis (coughing up blood)
- Chest pain
If TB disease is in other parts of the body (extrapulmonary), symptoms will depend on the area affected.
How Do You Evaluate Persons Suspected of Having TB Disease?
A complete medical evaluation for TB includes the following:
1. Medical History
Clinicians should ask about the patient’s history of TB exposure, infection, or disease. It is also important to consider demographic factors (e.g., country of origin, age, ethnic or racial group, occupation) that may increase the patient’s risk for exposure to TB or to drug-resistant TB. Also, clinicians should determine whether the patient has medical conditions, especially HIV infection, that increase the risk of latent TB infection progressing to TB disease.
2. Physical Examination
A physical exam can provide valuable information about the patient’s overall condition and other factors that may affect how TB is treated, such as HIV infection or other illnesses.
3. Test for TB Infection
The Mantoux tuberculin skin test (TST) or the special TB blood test can be used to test for M. tuberculosis infection. Additional tests are required to confirm TB disease. The Mantoux tuberculin skin test is performed by injecting a small amount of fluid called tuberculin into the skin in the lower part of the arm. The test is read within 48 to 72 hours by a trained health care worker, who looks for a reaction (induration) on the arm.
The special TB blood test measures the patient’s immune system reaction to M. tuberculosis.
4. Chest Radiograph
A posterior-anterior chest radiograph is used to detect chest abnormalities. Lesions may appear anywhere in the lungs and may differ in size, shape, density, and cavitation. These abnormalities may suggest TB, but cannot be used to definitively diagnose TB. However, a chest radiograph may be used to rule out the possibility of pulmonary TB in a person who has had a positive reaction to a TST or special TB blood test and no symptoms of disease.
5. Diagnostic Microbiology
The presence of acid-fast-bacilli (AFB) on a sputum smear or other specimen often indicates TB disease. Acid-fast microscopy is easy and quick, but it does not confirm a diagnosis of TB because some acid-fast-bacilli are not M. tuberculosis. Therefore, a culture is done on all initial samples to confirm the diagnosis. (However, a positive culture is not always necessary to begin or continue treatment for TB.) A positive culture for M. tuberculosis confirms the diagnosis of TB disease. Culture examinations should be completed on all specimens, regardless of AFB smear results. Laboratories should report positive results on smears and cultures within 24 hours by telephone or fax to the primary health care provider and to the state or local TB control program, as required by law.
6. Drug Resistance
For all patients, the initial M. tuberculosis isolate should be tested for drug resistance. It is crucial to identify drug resistance as early as possible to ensure effective treatment. Drug susceptibility patterns should be repeated for patients who do not respond adequately to treatment or who have positive culture results despite 3 months of therapy. Susceptibility results from laboratories should be promptly reported to the primary health care provider and the state or local TB control program.
Additional Information
-
American
Thoracic Society (ATS) and CDC. Diagnostic standards and classification
of tuberculosis in adults and children.(PDF) Am J Respir
Crit Care Med 2000; 161.
- ATS, CDC,
and Infectious Diseases Society of America. Treatment of tuberculosis.
MMWR 2003; 52 (No. RR-11).
- Centers for
Disease Control and Prevention. Guidelines for the investigation
of contacts of persons with infectious tuberculosis and Guidelines
for using the QuantiFERON®-TB Gold test for detecting
Mycobacterium
tuberculosis infection, United States. MMWR 2005; 54
(No. RR-15).
- Updated Guidelines for the Use of Nucleic Acid Amplification Tests in the Diagnosis of Tuberculosis.
MMWR 2009;58(1)
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- Centers for Disease Control and Prevention
Division of Tuberculosis Elimination (DTBE)
1600 Clifton Rd., NE
MS E10
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(800-232-4636)
TTY: (888) 232-6348
24 Hours/Every Day - cdcinfo@cdc.gov