pneumococcus, is a small, gram-positive, flattened coccus that often appears in pairs
S. Pneumoniae
pneumococcus
S. Pneumoniae
alpha-hemolytic on blood agar
S. Pneumoniae
S. pneumoniae is part of the normal biota in the upper respiratory tract of up to _% of healthy people
50
Infection occurs when the bacterium is inhaled into deep areas of the lung
S. Pneumoniae
Other transmission of S. Pneumoniae
Respiratory droplet
The _____ _____ of the S. Pneumoniae prevents efficient _____, apparently by blocking the attachment of complement, with the result that the fluids of inflammation are continuously released into the lungs.
polysaccharide capsule, phagocytosis
Condition in which mixture of exudates solidifies in the air spaces
Consolidation
This bacteria is resistant to penicillin and its derivatives: macrolides, tetracyclines, and fluoroquinolones
S. Pneumoniae
Treatment recommended for S. Pneumoniae
broad-spectrum cephalosporins with or without vancomycin
Atypical pneumonia where symptoms don’t resemble those of pneumococcal pneumonia
Mycoplasma pneumoniae
Mycoplasma pneumonia is transmitted by _____ ____ among people confined in close living quarters
aerosol droplets
Lack a cell wall & irregularly shaped
Mycoplasma pneumoniae
Diagnosed by ruling out other causes
Mycoplasma pneumoniae
weakly gram-negative bacterium that displays a range of shapes, from coccus to filaments
Legionella pneumophila
lung-loving bacterium
Legionella pneumophila
L. pneumophila is wideoy distributed in _____ ____
aqueous environments
Bacterium resistant to chlorine
L. pneumophila
opportunistic disease affecting elderly and rarely in healthy children & adults
L. pneumophila
DOS (Darling’s disease, Ohio Valley fever, spelunker’s disease)
Histoplasma capsulatum
dimorphic fungus
Histoplasma capsulatum
most serious forms of H. Capsulatum occur in pxs with ___
AIDS
Endemic to all continents except Australia
Histoplasma capsulatum
fungus that is probably normal biota in healthy people, but in severely immunocompromised persons, it can cause a serious pneumonia
Pneumocystisjirovecii
Pneumocystis jirovecii is commonly called PCP which stands for?
Pneumocystis carinii pneumonia
This fungus multiplies intra- and extra-cellularly
P. jirovecii
Are traditional antifungals effective against P. jirovecii?