Podcast
Questions and Answers
What characterizes the rash associated with Rocky Mountain spotted fever?
What characterizes the rash associated with Rocky Mountain spotted fever?
- Appears as mulberrylike inclusions in the cytoplasm.
- Is primarily located on the face and back.
- Starts centrally and spreads outward, sparing palms and soles.
- Starts at wrists and ankles, then spreads to the trunk, palms, and soles. (correct)
Which vector is responsible for transmitting Typhus?
Which vector is responsible for transmitting Typhus?
- Mosquitoes
- Ticks
- Lice (correct)
- Fleas (correct)
Which of the following diseases is not caused by a vector?
Which of the following diseases is not caused by a vector?
- Q fever (correct)
- Rocky Mountain spotted fever
- Ehrlichiosis
- Anaplasmosis
What type of inclusions would you expect to find in the cytoplasm of monocytes in a patient with Ehrlichiosis?
What type of inclusions would you expect to find in the cytoplasm of monocytes in a patient with Ehrlichiosis?
Which symptom is NOT associated with Q fever?
Which symptom is NOT associated with Q fever?
Which disease is most commonly associated with a rash that starts at the wrists and ankles?
Which disease is most commonly associated with a rash that starts at the wrists and ankles?
What is the primary vector for Anaplasmosis?
What is the primary vector for Anaplasmosis?
Which symptom is commonly associated with Q fever?
Which symptom is commonly associated with Q fever?
Which of the following statements about Typhus is correct?
Which of the following statements about Typhus is correct?
What type of inclusions are found in the cytoplasm of granulocytes in Anaplasmosis?
What type of inclusions are found in the cytoplasm of granulocytes in Anaplasmosis?
What is the primary vector for Rocky Mountain spotted fever?
What is the primary vector for Rocky Mountain spotted fever?
Which disease is characterized by a rash that starts centrally and spreads outward, sparing the palms and soles?
Which disease is characterized by a rash that starts centrally and spreads outward, sparing the palms and soles?
Which disease is transmitted by inhalation and not through an arthropod vector?
Which disease is transmitted by inhalation and not through an arthropod vector?
What type of cells would you expect to see with morulae inclusions in a patient with Anaplasmosis?
What type of cells would you expect to see with morulae inclusions in a patient with Anaplasmosis?
What is a common presentation in patients with Q fever?
What is a common presentation in patients with Q fever?
Which disease is primarily associated with a rash that starts at the wrists and ankles?
Which disease is primarily associated with a rash that starts at the wrists and ankles?
What is the primary vector responsible for transmitting Typhus?
What is the primary vector responsible for transmitting Typhus?
Which of the following diseases does NOT have a rash as a typical presentation?
Which of the following diseases does NOT have a rash as a typical presentation?
What characteristic is associated with granulocytes in patients with Anaplasmosis?
What characteristic is associated with granulocytes in patients with Anaplasmosis?
Which symptom is commonly presented in patients with Q fever?
Which symptom is commonly presented in patients with Q fever?
Study Notes
Common Rash Diseases
-
Rocky Mountain spotted fever
- Primarily occurs in South Atlantic states, especially North Carolina.
- Rash typically begins on wrists and ankles, then spreads to trunk, palms, and soles.
-
Typhus
- Transmitted by fleas (endemic) and human body louse (epidemic).
- Rash starts at the center of the body and spreads outward, sparing palms and soles.
Rare Rash Diseases
-
Ehrlichiosis
- Caused by ticks; characterized by monocytes containing morulae B, which are mulberry-like inclusions in the cytoplasm.
-
Anaplasmosis
- Also tick-borne; features granulocytes with morulae C in the cytoplasm.
-
Q fever
- No arthropod vector; caused by a bacterium inhaled through aerosols from cattle or sheep amniotic fluid.
- Common symptoms include headache, cough, flu-like symptoms, pneumonia, and may include hepatitis.
- Notably a cause of culture-negative endocarditis.
- Considered complicated due to lack of rash or known vector; organism can survive outside as an endospore.
- Closely related to Rickettsia but not classified within that genus.
Common Rash Diseases
-
Rocky Mountain spotted fever
- Primarily occurs in South Atlantic states, especially North Carolina.
- Rash typically begins on wrists and ankles, then spreads to trunk, palms, and soles.
-
Typhus
- Transmitted by fleas (endemic) and human body louse (epidemic).
- Rash starts at the center of the body and spreads outward, sparing palms and soles.
Rare Rash Diseases
-
Ehrlichiosis
- Caused by ticks; characterized by monocytes containing morulae B, which are mulberry-like inclusions in the cytoplasm.
-
Anaplasmosis
- Also tick-borne; features granulocytes with morulae C in the cytoplasm.
-
Q fever
- No arthropod vector; caused by a bacterium inhaled through aerosols from cattle or sheep amniotic fluid.
- Common symptoms include headache, cough, flu-like symptoms, pneumonia, and may include hepatitis.
- Notably a cause of culture-negative endocarditis.
- Considered complicated due to lack of rash or known vector; organism can survive outside as an endospore.
- Closely related to Rickettsia but not classified within that genus.
Common Rash Diseases
-
Rocky Mountain spotted fever
- Primarily occurs in South Atlantic states, especially North Carolina.
- Rash typically begins on wrists and ankles, then spreads to trunk, palms, and soles.
-
Typhus
- Transmitted by fleas (endemic) and human body louse (epidemic).
- Rash starts at the center of the body and spreads outward, sparing palms and soles.
Rare Rash Diseases
-
Ehrlichiosis
- Caused by ticks; characterized by monocytes containing morulae B, which are mulberry-like inclusions in the cytoplasm.
-
Anaplasmosis
- Also tick-borne; features granulocytes with morulae C in the cytoplasm.
-
Q fever
- No arthropod vector; caused by a bacterium inhaled through aerosols from cattle or sheep amniotic fluid.
- Common symptoms include headache, cough, flu-like symptoms, pneumonia, and may include hepatitis.
- Notably a cause of culture-negative endocarditis.
- Considered complicated due to lack of rash or known vector; organism can survive outside as an endospore.
- Closely related to Rickettsia but not classified within that genus.
Common Rash Diseases
-
Rocky Mountain spotted fever
- Primarily occurs in South Atlantic states, especially North Carolina.
- Rash typically begins on wrists and ankles, then spreads to trunk, palms, and soles.
-
Typhus
- Transmitted by fleas (endemic) and human body louse (epidemic).
- Rash starts at the center of the body and spreads outward, sparing palms and soles.
Rare Rash Diseases
-
Ehrlichiosis
- Caused by ticks; characterized by monocytes containing morulae B, which are mulberry-like inclusions in the cytoplasm.
-
Anaplasmosis
- Also tick-borne; features granulocytes with morulae C in the cytoplasm.
-
Q fever
- No arthropod vector; caused by a bacterium inhaled through aerosols from cattle or sheep amniotic fluid.
- Common symptoms include headache, cough, flu-like symptoms, pneumonia, and may include hepatitis.
- Notably a cause of culture-negative endocarditis.
- Considered complicated due to lack of rash or known vector; organism can survive outside as an endospore.
- Closely related to Rickettsia but not classified within that genus.
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Description
Test your knowledge on rickettsial diseases and vector-borne illnesses with a focus on common and rare rashes. This quiz will cover key information about the diseases, their vectors, and the characteristics of the rashes they produce.
