One of my close friends has multidrug-resistant lymph node tuberculosis, and she's currently undergoing treatment. The test results for her sputum came back negative. I'm wondering if this condition is contagious in any way, and if there are any precautions we should consider. Can you advise?

Although your friend's sputum reports are negative, Multi-Drug Resistant (MDR) lymph node TB can still be contagious through close contact, especially if your friend has a cough or is experiencing lymph node drainage; take precautions like wearing a mask, avoiding close contact, covering mouth and nose while coughingsneezing, and ensuring good ventilation to minimize transmission risk.