<s>[INST] Hi ,I am 40y female who has moved overseas and recently diagnosed with tuberculous  cervical lymhadenitis,.I need to know if it is infectious,,how many months will I need treatment.S/E of medications and  chances of recurrence.Is exposure to extreme cold be a triggering factor? [/INST] Hi! Now-a-days gland tuberculosis is so widespread in the Third World countries like India... Well, here go the answers to your questions:1. It is caused by the same bacteria i.e., M. tuberculosis2. It is infectious and spreads through lymph from any primary focus in lungs or directly from nasopharyngeal infection3. But isolated gland TB doesn't spread through aerosols4. You need 6-24 months of medication depending on yourresponse5. The Chat Doctor.  Chances of recurrence is less than 10% once treated completely7. Cold is not a triggering factor </s>