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16 Cards in this Set

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  • Back
Formerly a leading cause of infection in children, the incidence of infection has dramatically decreased with the introduction of a vaccine
Haemophilus Influenzae

Tx:3rd Generation Cephalosporin (Cephtriaxone)

Otitis Media: Ampicillin or Amoxicillin

Prophylaxis: Hib Vaccine - polyribitol phosphate (PRP)
A sexually transmitted disease, results in painful necrotizing genital ulcers (Chancroid). Most infections occur in the tropics.
Haemophilus Ducreyi

Unilateral painful swollen lymph nodes release pus
Causes a paroxysmal cough ending with an inspiratory Whoop as air rushes over the swollen glottis.
Bordatella Pertussis
Puritis + fishy smelling dishcharge. Clue cells present.
Gardnerella Vaginalis

Clue cells are vaginal epithelial cells that contain pleomorphic bacilli in the cytoplasm.

Tx: Metronidazole
Pontiac Fever (Flu like)

Legionnaires disease (increased fever, severe pneumonia CAP non productive cough)
Legionella Pneumophilia
aerobic, beta lactamase resistant

Tx: Erythromycin, Rifampin
Encapsulated A-F B=invasive:
Meningitis - Look out for LPS
Epiglottitis - stridor+red cherry at pharynx base
Septic Arthritis - infants

Otitis Media
Haemophilus Influenzae

B=Bad Capsule (see N. Meningitidis)

Tx:3rd Generation Cephalosporin (Cephtriaxone)
Otitis Media: Ampicillin or Amoxicillin

Prophylaxis: Hib Vaccine
Haemophilus Influenzae Dx:
Culture on chocolate agar
Quelling Rx
Blood loving virulence factors X and V are associated with what gram - rod organism
Haemophilus Influenzae

X factor - Hematin
V factor - NAD+
STD's responsible for Chancroid:

Painless Ulcer,Bilateral adenopathy, no pus

Painful ulcer with uilateral adenopathy

Painless Ulcer, then unilateral adenopathy

Painful vesicles + Systemic Symptoms
Haemophilus Ducreyi
Chlamydia - lymphogranuloma venereuum
Bordatella Pertussis
virulence factors
Pertussis toxin (A Action, B Binds)
Adenylate cyclase - superoxide impairment
FHA - attatchment
Tracheal cytotoxin - ciliated cell
Bordatella Pertussis Tx:
3 stages:
Catarrhal(mild cough 1-2wks) -Erythromycin
Paroxysmal (Whoop 2-10wks)
Bordatella Pertussus Dx:
Collect with calcium alginate swab (wont grow on cotton)

Grow on Bordet-Gengou medium

ELISA serology
Legionella Pneumophilia Dx:
Charcoal yeast extract agar with L-cysteine.
Serology IFA + ELISA
Urinary Antigen via immunoassay
Cytotoxin kills hamster ovary cells
Legionella Pneumophilia
This organism grows in warm, moist environments (contaminated air conditioner systems) and causes a potential life-threatening pneumonia in patients with lung disease.
Legionella Pneumonphilia
This organism, often visualized with Dieterle silver stain, also causes a less severe form of pneumonia known as Pontiac Fever.
Legionella Pneumophilia.