I'm really worried as my part-time maid's son has been diagnosed with TB, and we just found out today. He's apparently had it for about two months, but the maid herself seems totally fine and hasn't shown any symptoms. She's been at our place for work during this time since we didn't know, but should we be worried about being at risk? Weve been okay so far. Also, her son started with a watery cough just yesterday, not coughing up blood or anything, but can someone catch TB and only start showing symptoms way later, like in months or even years?

Patient is advised to continue ATT for 6 months.