Patients that receive biologics such as Humira, Enbrel, Actemra, etc. are at an increase risk for serious infections which may result in hospitalization and/or death. Tuberculosis may lie dormant in the body for years with out notice. Biologics are medications that may suppress the immune systems function. Suppression of the immune system increases the risk that the infection will become more active.

Tuberculosis

References:

https://www.arthritis.org/living-with-arthritis/treatments/medication/drug-types/biologics/precautions-biologics.php

https://www.cdc.gov/tb/publications/factsheets/testing/skintesting.htm

https://www.cdc.gov/tb/publications/factsheets/general/tb.pdf