Rickettsiae

Hero, a 19 year old student, noticed rashes in his palms and soles after his visit to his relatives in Colorado. The only thing notable about his visit was his interaction with his aunt’s 13 dogs. No eschar was seen.

What could be the possible vector of this disease?

• Leptotrombidium delicense

• Liponyssoides sanguineus

• Xenopsylla cheopsis

• Dermacentor variabilis

Hero, a 19 year old student, noticed rashes in his palms and soles after his visit to his relatives in Colorado. The only thing notable about his visit was his interaction with his aunt’s 13 dogs. No eschar was seen.

What diagnostic test can be done to determine what organism infected Hero?

• Indirect FA

• Direct FA

• Inclusion in circulating monocytes

• Inclusion in circulating granulocytes

Snowy, a Mongolian citizen, developed fever and noticed the development of eschar.

What could be a possible mammalian reservoir of this organism?

• Rodents

• Dogs

• Cats

• Sheep/Cattle

Snowy, a Mongolian citizen, developed fever and noticed the development of eschar.

Which of these countries can this organism also be seen?

• India

• Siberia

• United States

• France

Palestenian national Duchess, inspired by the book “Eat, Pray, Love” by Elizabeth Gilbert, decided to travel to Italy, India and Indonesia in hopes of finding herself and the meaning of life. However, before she can take off to Bali, her last destination, she discovered a tick bite and developed a fever. Eschar was seen.

What country/ies could she have acquired the disease?

I - Palestine II- Italy III- India IV-Indonesia

• II only

• III only

• III and IV

• I, II and III

Palestenian national Duchess, inspired by the book “Eat, Pray, Love” by Elizabeth Gilbert, decided to travel to Italy, India and Indonesia in hopes of finding herself and the meaning of life. However, before she can take off to Bali, her last destination, she discovered a tick bite and developed a fever. Eschar was seen.

What is the name of this disease?

• Rocky Mountain Spotted Disease

• Fievre boutonneuse

• Siberian Tick Typhus

• Scrub Typhus

What is/are the notable feature/s of the Spotted Fever group?

I. All are transmitted through ticks

II. Humans are a definitive host

III. All results to eschar formation

IV. Rodents are mammalian reservoirs of the three

• I and II

• I and III

• II and IV

• I and IV

• I, II and IV

Kai got bitten by an infected Rhipicephalus sanguineus on her way home after a jog. She then developed a fever and headache which are typical symptoms of rickettsial infections. Around how many days will it take before rashes start to manifest?

• 1-3 days

• 2-4 days

• 3-5 days

• 4-6 days

What type of cells are rickettsiae organisms located?

• Epithelial cells

• Endothelial cells

• Blood cells

• Nerve cells

What does tache noir mean?

• Black spot (eschar)

• Rash

• Endocarditis

• Lymphadenopathy