Hello,
I understand your concern.
I am Dr. Arun Tank, infectious diseases specialist, answering your query.
Yes, TB is curable if the proper treatment is taken.
TB can't be diagnosed only on the basis of the
x ray. If you have laboratory report of sputum for your father than your TB is confirmed.
I suggest you to do GeneXpert test from your father's sputum to know the sensitivity status of the TB.
From this report your treatment than becomes very easy.
Completed timely treatment can cure complete infection.
I will be happy to answer your further concern, you can ask me on bit.ly/DrArun.
Thank you.
Dr Arun Tank
Infectious diseases specialist.