Common organisms causinh sinusitis:: (A) pseudomonas, (B) Moraxella catarrhalis, (C) Streptococcus pneumoniae, (D) H.influenza
Answer is C. according to scott Brown 7/e,p 1441 M/C Organism causing sinusitis in adults is also Streptococcus pneumoniae followed by H.influenza. In childreb M/C is streptococcus pnuemonia followef by both H.influenza and moraxella catarrhalis.