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The current clinical classification system for TB used in the United States is based on the pathogenesis of the disease. This classification system provides clinicians the opportunity to track the development of TB in their patients. Health care providers should comply with state and local laws and regulations requiring the reporting of TB disease. All persons with Class 3 or Class 5 TB should be reported promptly to the local or state health department. A patient should not have a Class 5 classification for more than 3 months.

 

Classification System for TB