Chapter 24,part A Microbial Diseases of the Respiratory System
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings B.E Pruitt & Jane J. Stein Chapter 24, part A Microbial Diseases of the Respiratory System
Microbial Diseases of the Upper Respiratory System Laryngitis:S.pneumoniae,S.pyogenes,viruses Tonsillitis:S.pneumoniae,S.pyogenes,viruses 。Sinusitis:Bacteria Epiglottitis:H.influenzae
Microbial Diseases of the Upper Respiratory System • Laryngitis: S. pneumoniae, S. pyogenes, viruses • Tonsillitis: S. pneumoniae, S. pyogenes, viruses • Sinusitis: Bacteria • Epiglottitis: H. influenzae
Upper Respiratory System 。 Upper respiratory normal microbiota may include pathogens Sinus Nasal cavity -Sinus Middle ear Auditory(eustachian)tube Oral cavity Opening of auditory tube Tongue- Tonsils Epiglottis Pharynx(throat) Larynx(voice box) Spine(backbone) Trachea(windpipe) Esophagus Figure 24.1
• Upper respiratory normal microbiota may include pathogens Upper Respiratory System Figure 24.1
Streptococcal pharyngitis (Strep throat) Streptococcus pyogenes 。Resistant to phagocytosis 。 Streptokinases lyse clots Streptolysins are cytotoxic Diagnosis by indirect agglutination Figure 24.3
Streptococcal pharyngitis (Strep throat) Figure 24.3 • Streptococcus pyogenes • Resistant to phagocytosis • Streptokinases lyse clots • Streptolysins are cytotoxic • Diagnosis by indirect agglutination
Scarlet Fever 。Streptococcus pyogenes ·Pharyngitis ·Erythrogenic toxin produced by lysogenized S. pyogenes Figure 24.4
• Streptococcus pyogenes • Pharyngitis • Erythrogenic toxin produced by lysogenized S. pyogenes Scarlet Fever Figure 24.4