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Microbial Diseases of the Respiratory System
Flash cards for Test 4
15
Microbiology
Undergraduate 2
11/22/2009

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Cards

Term
Strep Throat
Definition
G+ Bacteria Upper Resp; caused by streptococcal pharyngitis; Beta-hymolytic Group A strep which completely lyses red blood cells; Treat with penicillin, erythromycin; complications include rheumatic fever, glomerulonephritis
Term
Scarlet Fever
Definition
G+ Bacteria Upper Resp; caused by strep. pyogenes which produces erythrogenic toxin (exotoxin); cytotoxin damages capillaries and produces red rash;
symptoms - fever, red enlarged tongue; Treat with penicillin; complications include deafness
Term
Diphtheria
Definition
G+ Bacteria Upper Resp; caused by corynebacterium diphtheriae; airborne transmission; symptoms - sore throat, fever, swelling of neck; high mortality rate 5-10%; creates toxins which kill cells
treatment - antimicrobials
Term
Common Cold (acute coryza)
Definition
Virus Upper Resp; caused by over 200 viruses; no vaccines available
Term
Whooping Cough (pertussis)
Definition
G- Bacteria Lower Resp; caused by Bordetella pertussis; produces capsule when virulent; both endotoxin and exotoxin; duration may take months, vaccine available
Term
Tuberculosis
Definition
G+ Bacteria Lower Resp; caused by Mycobacterium tuberclulosis; very slow-growing which makes it hard to treat with drugs; symptoms include progressive damage, weight loss, coughing blood, loss of vigor
Term
Bacterial Pneumonias
Definition
generic term for pulmonary infection (lower resp); caused by Srep pneumoniae, Hemophilus influenzae, Staph aureus, Legionella pneumophila, Mycoplasma pneumoniae, Klebsiella pneumoniae, E. coli, Pseudomonasaeruginosa; generally opportunistic inhabitants of mouth and throat
Term
Pneumococcal Pneumonia
Definition
G+ Bacteria Lower Resp; caused by Streptococcus pneumonia; symptoms include bronchi and alveoli fever; difficult breathing, reddish lungs, blood in spatum
Term
Klebsiella Pneumonia
Definition
G- Bacteria Lower Resp; caused by Klebsiella Pneumoniae; generally seen in debilitated; can cause permanet lung damage
Term
Mycoplasmal pneumonia (walking pneumonia)
Definition
Bacteria with no cell wall Upper Resp; caused by Mycoplasmal pneumoniae; cultures look like fried eggs; treat with tetracycline, erythromycin
Term
Legionellosis (Legionnaire's Disease)
Definition
G- Bacteria Lower Resp; caused by Legionella pneumophila; found in water, can be airborne through AC ducts; symptoms include high fever, cough, pneumonia-like; no known person-person transmission
Term
Viral Pneumonia
Definition
Virus Lower Resp; caused by various viruses; most common in infants; new treatment is aerosol ribavirin
Term
Influenza (flu)
Definition
Virus; changed frequently so difficult to develop vaccine; 8 separate RNA fragments; mortality mainly due to secondary bacterial infections
Term
Histoplasmosis (Darling's Disease)
Definition
Eukaryotic; caused by Histoplasma Capsulatum; symptoms are similar to TB; transmission airborne by spores; frequently seen around Mississippi and Ohio rivers
Term
Pneumocystis pneumonia
Definition
Eukaryotic (probably fungus); caused by Pneumocystis jirovecii; very bad for the immunocompromised; fatal if untreated
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