<prompt> Every TB sputum positive patient can infect up to:-1-2 persons per year5-6 persons per year10-15 persons per year100-200 persons per year  <response>: TB transmission: - Slow rise, then plateau phase, then slow fall is characteristic in India - propagative epidemic person - to person transmission. - Thus, Every TB sputum positive patient can infect up to 10-15 persons per year. 