What is Primary Koch?

Primary Koch refers to the initial stage of tuberculosis (TB) infection, specifically when the bacteria Mycobacterium tuberculosis first enters the body and begins to multiply. This stage is often asymptomatic, meaning individuals may not show symptoms, but they can still spread the infection. Primary Koch typically affects the lungs but can involve other organs as well. If not treated, it can progress to more severe forms of TB, such as pulmonary tuberculosis.