Social & Preventive Medicine A patient of tuberculosis was put on ATT for 5 months. Sputum examination is positive for AFB. The likely cause is – A Drug resistant B Drug resistant C Relapse of disease D Treatment failure 💡 Explanation A patient of tuberculosis was put on ATT for 5 months. Sputum examination is positive for AFB. The likely cause is - ✓ Correct Answer: D. Treatment failure