Our expert says:
TB is very resilient bug. It can live for quite a long time outside the body. Have your domestic and yourselves retested for tuberculosis.
I am however, optimistic that all of you will be fine and that her coughing is due to damage to her lungs after her TB treatment was completed. The attending doctor will not stop her TB treatment, unless they are sure that she is cured.
You can still get TB if you have an inoculation as a child.
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