Which outcome indicates successful adherence to TB preventive treatment?

Successful adherence to TB preventive treatment is indicated by the completion of the full treatment period without symptoms. This outcome is crucial as it signifies that the patient has followed the prescribed regimen diligently, which is essential for ensuring that the treatment effectively prevents the development of active tuberculosis.

Completion of the treatment period implies that the person has taken the necessary medications as directed over the entire duration, which is typically a lengthy process. Achieving this not only helps in reducing the likelihood of developing active TB but also contributes to the broader public health goal of controlling and ultimately eliminating tuberculosis.

The absence of symptoms during this time is also a positive sign, as it suggests that the treatment is working effectively and that the individual is well on their way to maintaining their health and preventing the risk of transmission to others. Overall, this outcome is the benchmark for evaluating the effectiveness of TB preventive measures.