Hi, thanks for using healthcare magic
The effect of childhood administration of BCG
diminishes over time and variable immunity rate, a positive ppd result is now interpreted as a true positive reaction.IF the follow xray shows no evidence of any problems then you would be said to have latent infection.
This would not mean that you have active TB
or that you can spread it to anyone. It does mean that there is an increased risk of developing it in the future.
Preventative drugs may be suggested to reduce the changes of this occurring.
I hope this helps