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Tuberculosis (TB)

The Modoc County Public Health Department works closely with health care providers to ensure that all TB cases are identified and treated effectively to prevent spread of this disease in our community. For more information, contact the Modoc County Tuberculosis Control Program Coordinator at (530) 233-6311.


Tuberculosis (TB) is an infectious respiratory disease caused by the bacterium Mycobacterium tuberculosis. It is one of the most deadly diseases in the world. It is estimated that 2 billion people in the world are infected with TB. In Modoc County there were no cases of active TB reported in 2011 or 2012.

Physicians and health care providers are required by California Code of Regulations, Title 17 to report ALL SUSPECTED cases of TB to the Modoc County Health Department within one working day of identification. The Modoc County Tuberculosis Control Program follows up on all reports by confirming diagnosis, coordinating and overseeing treatment, and screening at-risk contacts exposed to TB cases.

Testing for TB
If you are interested in getting a TB skin test, or if work or school requires that you have a TB skin test, you can come to our regularly scheduled TB clinics for the placement of the skin test, and the reading of the skin test.

These clinics are not for children. Children are referred to their primary care provider for TB testing

Adult TB Clinic
8:30 AM – 9AM, Tuesdays (Test Given)
8:30 AM – 9AM, Thursdays (Test Read)

411 North Main Street
Alturas, CA, 96101
(530) 233- 6311

NOTICE: If you are unable to make it back to Modoc County Public Health on Thursday between 8:30-9:00 a.m. to get your TB Test Read, Public Health will NOT administer another test free of charge.