Deck 38: Streptobacillus Moniliformis and Spirillum Minus

Question 1

Rat-bite fever caused by Spirillum minus can be differentiated from that caused by Streptobacillus moniliformis by

A)chills, fever, headache, vomiting, and often severe joint pains.
B)a granulomatous lesion.
C)septic arthritis.
D)endocarditis.

Answer 1

B
S. minus also causes rat-bite fever in humans and is referred to as Sodoku. The clinical signs and symptoms are similar to those caused by S. moniliformis except that arthritis is rarely seen in patients with Sodoku and swollen lymph nodes are prominent. Febrile episodes are also more predictable in Sodoku.

Question 2

The name given to rat-bite fever when the illness is caused by acquired S.minus is

A)Sodoku.
B)Haverhill fever.
C)Monillic fever.
D)Monillic gastritis.

Answer 2

A
S. minus also causes rat-bite fever in humans and is referred to as Sodoku. The clinical signs and symptoms are similar to those caused by S. moniliformis except that arthritis is rarely seen in patients with Sodoku and swollen lymph nodes are prominent. Febrile episodes are also more predictable in Sodoku.

Question 3

The name given to rat-bite fever when the illness is acquired by ingestion of the bacterium is

A)Sodoku.
B)Haverhill fever.
C)Monillic fever.
D)Monillic gastritis.

Answer 3

B
S. moniliformis is transmitted by two routes, by rat bite or direct contact with rats or by ingestion of contaminated food or water. Despite the different modes of transmission, the clinical manifestations of S. moniliformis infection are similar. When S. moniliformis is acquired by ingestion, the disease is called Haverhill fever.

Question 4

Rat-bite fever, or Haverhill fever, characterized by acute onset of chills, fever, headache, vomiting, and often severe joint pains and a rash on the palms, soles of the feet, and other extremities is caused by

A)Streptobacillus moniliformis.
B)Brucella abortus.
C)Bordetella species.
D)Pasteurella species.

Question 5

Sodoku, characterized by swollen lymph nodes, chills, fever, headache, vomiting, and often severe joint pains, a rash on the palms, soles of the feet, and other extremities, and a granulomatous lesion is caused by

A)Streptobacillus moniliformis.
B)Spirillum minus.
C)Bordetella species.
D)Pasteurella species.

Question 6

Rat-bite fever, or Haverhill fever, characterized by acute onset of chills, fever, headache, vomiting, and often severe joint pains and a rash on the palms, soles of the feet, and other extremities, is caused by

A)Bordetella species.
B)Brucella abortus.
C)Spirillum minus.
D)Pasteurella species.