Most common organism causing URT1 in adult-: (A) H influenza, (B) Stap aureus, (C) Strepto pneumonia, (D) Streptococcus pyogenes
Answer is D. Ans. is 'd' i.e., Streptococcus pyogenes o Most common cause of upper respiratory'' tract infection is viral infection. Rhinovirus is the most common cause,o Among the bacteria, group A beta-hemolytic streptococci (streptococcus pyogenes) is the most common cause. And most common type of infection is phary ngitis.