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Lab techniques 2 > Rickettsial Parasites > Flashcards

Rickettsial Parasites Flashcards

1
Q

What are Rickettsial organisms?

A

A group of obligate intracellular, Gram negative bacteria
Tick-borne
Prokaryotic

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2
Q

What bacteria claims dogs, foxes, ferrets, rodents, raccoons and humans as its host?

A

Rickettsia rickettsii

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3
Q

What is the common name of the infection caused by Rickettisa rickettsii?

A

Rocky Mountain Spotted Fever

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4
Q

What cell is Rickettsia rickettsii found in?

A

Endothelial cells

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5
Q

What is the most common fatal tick-borne disease?

A

Rocky mountain spotted fever

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6
Q

What are the clinical signs of Rickettsia rickettsii in humans?

A 
Fever
Aching muscles
Vomiting
Diarrhea
Spotted rash
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7
Q

What bacteria effects cattle?

A

Anaplasma marginale

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8
Q

In what cells is Anaplasma marginale found?

A

Red blood cells

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9
Q

What ticks transmit Rickettsia rickettsii?

A

Dermacentor spp
Amblyomma americanum
Rhipcephalus sanguines

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10
Q

What ticks spread Anaplasma marginale?

A

Dermacentor spp

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11
Q

Is Anaplasma marginale zoonotic?

A

No

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12
Q

What is considered one of the most expensive tick-borne bacterias?

A

Anaplasma marginale

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13
Q

What rickettsial bacteria calls dogs their host?

A

Anaplasma platys

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14
Q

What is the common name of the condition caused by Anaplasma platys?

A

Infectious Canine Cyclic Thrombocytopenia (ICCT)

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15
Q

Anaplasma platys is found in what cells?

A

Platelets

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16
Q

What ticks transmit Anaplasma platys

A

Rhipcephalus sanguines

Dermacentor spp

17
Q

What does an Anaplasma platys infection cause in humans?

A 
Decreased appetite
Weakness
Muscle pain
Fatigue
Headaches
18
Q

What anaplasma rickettsial bacteria is found in dogs and cats?

A

Anaplasma phagocytophilum

19
Q

Anaplasma phagocyophilum is found in what cells?

A

White blood cells

20
Q

What ticks transmit Anaplasma phagocytophilum?

A

Ixodes scapularis

Ixodes pacificus

21
Q

What does Anaplasma phagocytophilum cause in people?

A

Headache
Fever
Chills
Muscle Aches

22
Q

What rickettsial bacteria is found in Dogs and Cats

A

Ehrlichia ewingii

23
Q

What is the common name of the condition caused by Ehrlichia ewingii

A

Ehrlichia

24
Q

Ehrlichia ewingii is found in what cells?

A

Morulae in the granulocytes

25
Q

What tick transmits Ehrlichia ewingii?

A

Amblyomma americanum

26
Q

What clinical signs does Ehrlichia ewingii cause in dogs and cats?

A 
Anemia
Bleeding
Lameness
Eye problems
Neurologic problems
Swollen limbs
27
Q

What does a Rickettsia rickettsii cause in its hosts?

A 
Fever
Anorexia
Depression
Vomiting
Diarrhea
Enlarged lymph nodes
Anemia
Increased liver enzymes
28
Q

What does Anaplasma marginale cause in cattle?

A 
Pale mucous membranes
Icterus
Extravascular hemolytic anemia
Fever
Anorexia
Dehydration
Depression
29
Q

What does an Anaplasma platys infection cause in dogs

A 
Thrombocytopenia
Mild fever
Epistaxis
Petechiae
Ecchymosis
30
Q

What does an Anaplasma phagocytophilum infection cause in dogs and cats?

A 
Can be asymptomatic for 1-7 days
Vomiting 
Diarrhea
Coughing
Labored breathing
Lameness
Fever
Joint pain
Anorexia
31
Q

What causes Ehrlichiosis of canines?

A

Ehrlichia canis

32
Q

Ehrlichia canis is found in what cells

A

Agranulocytes

Monocytes & lymphocytes

33
Q

What does an Ehrlichia canis infection cause in dogs?

A 
Anorexia
Enlarged lymph nodes & spleen
Low platelet count
Abnormal bleeding
Petechiae
Death
34
Q

What tick transmits Ehrlichia canis?

A

Rhipicephalus sanguineus

35
Q

Is Ehrlichia canis zoonotic?

A

No

36
Q

What causes Ehrlichiosis in dogs, deers and humans?

A

Ehrlichia chaffeensis

37
Q

Ehrlichia chaffeensis is found in what cells?

A

Agranulocytes

Monocytes & lymphocytes

38
Q

What clinical signs does Ehrlichia chaffeensis cause in dogs?

A 
Can be asymptomatic
Depression
Lethargy
Mild weight loss
Anorexia
39
Q

What clinical signs does Ehrlichia chaffeensis cause in Humans?

A 
Fever
GI symptoms
Rash
DIC
Adult respiratory syndrome
Seizures
Coma

Lab techniques 2 (38 decks)

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