Chapter 24,part B Microbial Diseases of the Respiratory System
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings B.E Pruitt & Jane J. Stein Chapter 24, part B Microbial Diseases of the Respiratory System
Tuberculosis 。Vycobacterium tuberculosis:Acid-fast rod.Transmitted from human to human 。M.bovis.<1%U.S: cases,not transmitted from human to human M.avium-intracellulare complex infects people with late stage Hiv infection Figure 24.9
Tuberculosis Figure 24.9 • Mycobacterium tuberculosis: Acid-fast rod. Transmitted from human to human • M. bovis: <1% U.S. cases, not transmitted from human to human • M. avium-intracellulare complex infects people with late stage HIV infection
Tuberculosis Interior of alveolus Blood capillary Alveolar walls Interior of alveolus Ingested tubercle bacillus Alveolar macrophage Bronchiole Infiltrating macrophage 60 (not activated) 86 Early tubercle Figure 24.10.1
Tuberculosis Figure 24.10.1
Tuberculosis Tubercle bacilli Caseous center Activated macrophages Lymphocyte Figure 24.10.2
Tuberculosis Figure 24.10.2
Tuberculosis Outer layer of mature tubercle Tuberculous cavity Tubercle bacilli Rupture of bronchiole wall Figure 24.10.3
Tuberculosis Figure 24.10.3