Rickettsial Parasites

Question 1

What are Rickettsial organisms?

Answer 1

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

Question 2

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

Answer 2

Rickettsia rickettsii

Question 3

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

Answer 3

Rocky Mountain Spotted Fever

Question 4

What cell is Rickettsia rickettsii found in?

Answer 4

Endothelial cells

Question 5

What is the most common fatal tick-borne disease?

Answer 5

Rocky mountain spotted fever

Question 6

What are the clinical signs of Rickettsia rickettsii in humans?

Answer 6

Fever
Aching muscles
Vomiting
Diarrhea
Spotted rash

Question 7

What bacteria effects cattle?

Answer 7

Anaplasma marginale

Question 8

In what cells is Anaplasma marginale found?

Answer 8

Red blood cells

Question 9

What ticks transmit Rickettsia rickettsii?

Answer 9

Dermacentor spp
Amblyomma americanum
Rhipcephalus sanguines

Question 10

What ticks spread Anaplasma marginale?

Answer 10

Dermacentor spp

Question 11

Is Anaplasma marginale zoonotic?

Answer 11

No

Question 12

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

Answer 12

Anaplasma marginale

Question 13

What rickettsial bacteria calls dogs their host?

Answer 13

Anaplasma platys

Question 14

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

Answer 14

Infectious Canine Cyclic Thrombocytopenia (ICCT)

Question 15

Anaplasma platys is found in what cells?

Answer 15

Platelets

Question 16

What ticks transmit Anaplasma platys

Answer 16

Rhipcephalus sanguines

Dermacentor spp

Question 17

What does an Anaplasma platys infection cause in humans?

Answer 17

Decreased appetite
Weakness
Muscle pain
Fatigue
Headaches

Question 18

What anaplasma rickettsial bacteria is found in dogs and cats?

Answer 18

Anaplasma phagocytophilum

Question 19

Anaplasma phagocyophilum is found in what cells?

Answer 19

White blood cells

Question 20

What ticks transmit Anaplasma phagocytophilum?

Answer 20

Ixodes scapularis

Ixodes pacificus

Question 21

What does Anaplasma phagocytophilum cause in people?

Answer 21

Headache
Fever
Chills
Muscle Aches

Question 22

What rickettsial bacteria is found in Dogs and Cats

Answer 22

Ehrlichia ewingii

Question 23

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

Answer 23

Ehrlichia

Question 24

Ehrlichia ewingii is found in what cells?

Answer 24

Morulae in the granulocytes

Question 25

What tick transmits Ehrlichia ewingii?

Answer 25

Amblyomma americanum

Question 26

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

Answer 26

``` Anemia Bleeding Lameness Eye problems Neurologic problems Swollen limbs ```

Question 27

What does a Rickettsia rickettsii cause in its hosts?

Answer 27

``` Fever Anorexia Depression Vomiting Diarrhea Enlarged lymph nodes Anemia Increased liver enzymes ```

Question 28

What does Anaplasma marginale cause in cattle?

Answer 28

``` Pale mucous membranes Icterus Extravascular hemolytic anemia Fever Anorexia Dehydration Depression ```

Question 29

What does an Anaplasma platys infection cause in dogs

Answer 29

``` Thrombocytopenia Mild fever Epistaxis Petechiae Ecchymosis ```

Question 30

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

Answer 30

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

Question 31

What causes Ehrlichiosis of canines?

Answer 31

Ehrlichia canis

Question 32

Ehrlichia canis is found in what cells

Answer 32

Agranulocytes | Monocytes & lymphocytes

Question 33

What does an Ehrlichia canis infection cause in dogs?

Answer 33

``` Anorexia Enlarged lymph nodes & spleen Low platelet count Abnormal bleeding Petechiae Death ```

Question 34

What tick transmits Ehrlichia canis?

Answer 34

Rhipicephalus sanguineus

Question 35

Is Ehrlichia canis zoonotic?

Answer 35

No

Question 36

What causes Ehrlichiosis in dogs, deers and humans?

Answer 36

Ehrlichia chaffeensis

Question 37

Ehrlichia chaffeensis is found in what cells?

Answer 37

Agranulocytes | Monocytes & lymphocytes

Question 38

What clinical signs does Ehrlichia chaffeensis cause in dogs?

Answer 38

``` Can be asymptomatic Depression Lethargy Mild weight loss Anorexia ```

Question 39

What clinical signs does Ehrlichia chaffeensis cause in Humans?

Answer 39

``` Fever GI symptoms Rash DIC Adult respiratory syndrome Seizures Coma ```