Streptobacillus moniliformis

Streptobacillus moniliformis is a topic covered in the Johns Hopkins ABX Guide.

To view the entire topic, please or .

Official website of the Johns Hopkins Antibiotic (ABX), HIV, Diabetes, and Psychiatry Guides, powered by Unbound Medicine. Johns Hopkins Guide App for iOS, iPhone, iPad, and Android included. Explore these free sample topics:

-- The first section of this topic is shown below --

MICROBIOLOGY

  • Pleomorphic, nonencapsulated, branching Gram-negative bacillus [Fig 1].
    • Stains irregularly and may be mistaken for Gram-positive pleomorphic rods.
    • Grows slowly, so the lab should be notified to hold cultures if clinical suspicion for this pathogen.
  • Normal commensal of rodent oropharynx, even healthy pets and laboratory rats.
    • Risk of infection after a rat bite may be as high as 10%.
    • May also be transmitted to humans by bite/scratch from mice, squirrels, cats, dogs, or pigs.
  • A major cause of rat bite fever (RBF; most common cause in the U.S.)
    • Spirillum minus also a cause, primarily in Asia; cannot be cultured on synthetic media.
    • Spirillum notomytis also a cause, rarely reported.

-- To view the remaining sections of this topic, please or --

MICROBIOLOGY

  • Pleomorphic, nonencapsulated, branching Gram-negative bacillus [Fig 1].
    • Stains irregularly and may be mistaken for Gram-positive pleomorphic rods.
    • Grows slowly, so the lab should be notified to hold cultures if clinical suspicion for this pathogen.
  • Normal commensal of rodent oropharynx, even healthy pets and laboratory rats.
    • Risk of infection after a rat bite may be as high as 10%.
    • May also be transmitted to humans by bite/scratch from mice, squirrels, cats, dogs, or pigs.
  • A major cause of rat bite fever (RBF; most common cause in the U.S.)
    • Spirillum minus also a cause, primarily in Asia; cannot be cultured on synthetic media.
    • Spirillum notomytis also a cause, rarely reported.

There's more to see -- the rest of this entry is available only to subscribers.