Spirillum minor

Definition

Spirillum minor is a Gram-negative, spiral-shaped bacterium known for causing rat-bite fever. It is typically transmitted through bites or scratches from infected rodents.

5 Must Know Facts For Your Next Test

1. Spirillum minor causes rat-bite fever, also known as sodoku.
2. It is a Gram-negative bacterium with a characteristic spiral shape.
3. The incubation period for infection ranges from one to three weeks post-exposure.
4. Symptoms often include fever, muscle pain, and ulceration at the site of the bite.
5. Diagnosis is generally confirmed through serological tests and culture of the bacteria.

Review Questions

• What type of bacterium is Spirillum minor and what disease does it cause?
• Describe the typical symptoms associated with an infection by Spirillum minor.
• How is Spirillum minor most commonly transmitted to humans?

Related terms

Gram-negative bacteria: Bacteria that do not retain the crystal violet stain used in the Gram staining method.

Rat-bite fever: An infectious disease caused by either Streptobacillus moniliformis or Spirillum minor, following a rodent bite.

Serological tests: Laboratory tests used to detect antibodies or antigens in blood samples.