This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
If a new sputum smear positive patient of tuberculosis continues to be smear positive at the end of intensive phase of category I treatment under DOTS, fuher management of this patient would be to - 
Select and explain. 
A. Sta category I treatment again, B. Treat. him as failure and sta category II treatmenet under DOTS, C. Continue the intensive phase or treatment for one more month, D. Sta continuation phase under category I
C: Continue the intensive phase or treatment for one more month
Answer: C: Continue the intensive phase or treatment for one more month 
Explanation: <p> Patients in category I &II , who have a positive sputum smear at the end of the initial intensive phase , receive an additional month of intensive phase treatment. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:188. <\p>