The book "Role of Capsule in Pathogenesis of Klebsiella pneumoniae in Rat Model" offers a comprehensive investigation into the role of capsular polysaccharides in the pathogenesis of Klebsiella pneumoniae. It analyzes the differences in total polysaccharide concentrations extracted from isolated K. pneumoniae strains and highlights the cellular events that lead to pneumonia. The study uses a rat model to examine the effects of capsular polysaccharides and lipopolysaccharides on disease development. The results show significant differences in capsular polysaccharide concentration depending on the isolation site, with the highest values obtained from blood samples. Histopathological examinations illustrate the host's responses to the various treatments and the associated disease courses.