Stage 1 TB, also known as primary infection, is the initial stage of a tuberculosis (TB) infection. In this stage, the body's immune system cells identify and attempt to contain the Mycobacterium tuberculosis bacteria. The immune response may successfully eliminate the bacteria, preventing further progression of the disease. However, some bacteria might survive and remain dormant within the body. This dormant state is called latent TB.
Several sources corroborate this description of the initial stage. For instance, the Mayo Clinic's website describes this initial stage as the "primary TB infection," where immune cells engage with the bacteria. https://www.mayoclinic.org/diseases-conditions/tuberculosis/symptoms-causes/syc-20351250 Similarly, WebMD describes primary TB as the first stage, where the immune system might successfully fight off the infection, but sometimes fails to do so. https://www.webmd.com/lung/understanding-tuberculosis-basics Another source highlights that the infection frequently occurs at a young age. https://openi.nlm.nih.gov/detailedresult?img=PMC3349743_ppat.1002607.g001&req=4
It's important to distinguish this initial stage from later stages of TB, such as latent TB and active TB. Latent TB involves the presence of dormant bacteria without active disease, while active TB signifies the reactivation of the bacteria and the development of symptoms.
The information provided clarifies that Stage 1 TB refers to the primary infection stage. Understanding this stage is crucial for preventative measures and early intervention.
