TB evaluation at Auburn Medical Center

An employee at MultiCare Auburn Medical Center who worked in their Family Birth Center was recently diagnosed with active tuberculosis (TB) disease. The employee came into contact with patients and staff during a five-month period in 2019. Public Health – Seattle & King County is providing guidance to MultiCare as they identify and test exposed individuals. The risk for TB spreading to others who came into contact with the employee is low.

MultiCare has issued a press release about the situation and their response.

TB is not easy to spread

TB is an infectious disease caused by bacteria that are passed from person to person through the air. TB is not easily spread; it’s much harder to spread than the cold or flu. It typically takes repeated and prolonged exposure in a confined indoor space to become infected with TB. Even in households with a person with contagious TB disease, only about 1-in-3 close household contacts become infected.

Active disease different from latent TB

Unlike active TB disease, people with latent (or dormant) TB infection can’t spread it to others and are not ill with the disease. Approximately 100,000 people in King County have latent TB infection. While they aren’t contagious now, they could potentially have active TB in the future and also infect others. Approximately one in 10 people with latent TB infection will develop active TB disease in their lifetime.

Details on the evaluation

The period of potential exposures in the Family Birth Center at Auburn Medical Center was from April 22nd to September 30th, 2019. An evaluation of exposures identified 27 mothers and 26 infants who were in contact with the person with TB disease for a long enough period of time that testing for TB infection is recommended as a precaution. In addition, 107 staff are also recommended to get tested. The risk any of these individuals becoming infected with TB from this employee is low.

MultiCare is reaching out to these patients and staff to notify them and facilitate testing free of charge. MultiCare is also reaching out to their babies’ pediatricians and recommending that their parents talk with their child’s doctor to discuss best next steps for monitoring symptoms.

Additional individuals had limited exposure to this staff member over the five-month period. Because of the brief exposure periods for these people, they are not believed to be at risk for infection, and testing is not recommended at this point. 

Treatment for TB

The employee with active TB disease is currently receiving treatment. Most cases of active TB are readily treatable with antibiotics that are commonly available; treatment typically takes six to nine months. Drug-resistant strains require different antibiotics and may include a longer course of treatment (up to two years).

To become cured, a patient must complete the entire treatment, even after they are no longer infectious. If the treatment is interrupted before the bacteria are completely eliminated, TB can develop drug-resistance and become much harder to treat.

Patients or staff of Auburn Medical Center identified to be infected with latent TB may be recommended for treatment, so that they do not develop the disease in the future.

More about TB

TB usually affects the lungs, but can affect lymph nodes, bones, joints, and other parts of the body. A person with active TB in the lungs can spread the disease by coughing or sneezing. In King County, 93 new cases of TB disease were reported in 2018.

To learn more about signs, symptoms, and transmission of TB, visit the Centers for Disease Control and Prevention’s TB website.

TB program protects the community

Public Health – Seattle & King County’s TB Control Program ensures that people with active TB are diagnosed and cured, and that others in contact with them who are at highest risk of infection are screened, so that infections do not spread.  This essential public health work improves the community’s health and saves money by controlling the spread of TB, preventing outbreaks, and preventing the development of multi-drug resistant TB that can be very expensive to treat.

TB is a global threat, with over two million deaths every year, as people in many parts of the world do not have access to treatment and effective TB control programs like we do in the United States. Because King County is at a global crossroads, we need to be constantly vigilant to prevent the spread of TB.

Originally posted on November 13, 2019