A 55yrs man presents to the OPD with low grade fever, cough since 5 days, he says that there is increased production of sputum. He is a known case of chronic bronchitis , diabetes. All of the following are used by the causative organism to cause the disease except?
The given clinical scenario describes exacerbation of COPD, the most common cause is nontypable H. influenza. Non-typable Haemophilus influenzae lack a capsule and a capsular antigen. The exacerbations of COPD are characterized by low grade fever, increased cough, sputum production, and shoness of breath. H. influenzae has the following virulence factors: Capsular polysaccharide Outer membrane proteins (OMP) Lipo-oligosaccharide(LOS) Pili The capsule is absent in non-typable H. influenzae. Reference: Ananthanarayan and Paniker&;s Textbook of Microbiology Tenth edition
Pili
Outer membrane protein
Lipooligosaccharide
Capsular polysaccharide
Bacteriology