Rickettsia

Question 1

True/False: Rickettsia live outside cells

Answer 1

FALSE

*obligate intracellular

Question 2

Ricketssia is mainly transmitted via ____

Answer 2

arthropods

Question 3

What cells does the genus Anaplasma like to live in?

Answer 3

myeloid cells

neutrophils

erythrocytes

Question 4

What are some pathological signs of Anaplasma?

Answer 4

anemia

thrombocytopenia

leukopenia

Question 5

What species of anaplasma is the big one in livestock?

Answer 5

Anaplasma marginale

*bovine anaplasmosis

Question 6

What anaplasma species if extremely prevalant in dogs and what cells does it live in?

Answer 6

Anaplasma platys

*lives in platelets

Question 7

What species of Anaplasma affects dogs, horses and humans?

Answer 7

Anaplasma phagocytophilum

Question 8

In Anaplasma marginale, livestock can be the end hosts as well as ____

Answer 8

Reservoirs

Question 9

In anaplasma marginale, what animals is the big carrier of the vector?

Answer 9

wild deer

Question 10

True/False: Anaplasma marginale is a reportable disease

Answer 10

True!!

Question 11

What kind of ticks transmit Anaplasma marginale?

Answer 11

HARD TICKS

*boophilus

Question 12

severe ____ is caused by bovine anasplasmosis

Answer 12

anemia

Question 13

With bovine Anaplasmosis, persistant infection is the most common and causes _____

Answer 13

undulating febrile disease

Question 14

Bovine anaplasmosis causes huge destruction to ____

Answer 14

erythrocytes

Question 15

Where is Bovine Anaplasmosis found in erythrocytes?

Answer 15

near the periphery

Question 16

What is the main treatment for Bovine Anaplasmosis?

Answer 16

Vaccination and VECTOR CONTROL

Question 17

Most Rickettsia species are susceptible to what antibiotic?

Answer 17

Tetracylines

Question 18

What cells do Anaplasma Phagocytophilum live in?

Answer 18

neutrophils!!!!

*granulocytes

Question 19

Anaplasma phagocytophilum causes ___ borne fever

Answer 19

tick

Question 20

Anaplasma Phagocytophilum can be co-transmitted with ___ because they are transmitted by the same tick

Answer 20

Borellia

Question 21

What species of tick transmits Anaplasma Phagocytophilum?

Answer 21

Ixodes scapularis or pacificus

Question 22

Clinical signs of Anaplasma phygocytophilum

Answer 22

lethargic

not eating

leukopenia

Question 23

Anaplasma Platys is found in what cells?

Answer 23

Platelets

Question 24

What does Anaplasma Platys cause in dogs?

Answer 24

Infectious canine cyclic thrombocytopenia

Question 25

Anaplasma Platys is common co-infected with \_\_\_\_

Answer 25

Ehrlichia

Question 26

What ticks transmit Anaplasma Platys?

Answer 26

Rhipicephalus Dermacentor

Question 27

Genus Rickettsiae lives in ____ cells

Answer 27

endothelial

Question 28

What disease does Rickettsia Rickettsii cause in dogs?

Answer 28

Rocky mountain spotted fever

Question 29

What ticks transmit Rickettsia Rickettsii?

Answer 29

Dermacentor andersoni- Wood tick Dermacentor variablis- American dog tick

Question 30

What is the main pathology of Rickettsia Rickettsii?

Answer 30

VASCULITIS!!

Question 31

Severe ____ in extermitis in dogs occur with Ricketssia Rickettsii

Answer 31

necrosis

Question 32

What is at the top of the differential wht Rickettsia Rickettsii?

Answer 32

Ehrlichiosis

Question 33

Best control for Rickettsia Rickettsii?

Answer 33

Tick control!

Question 34

Coxiella Burnetii, is the only one that doesn't need to be \_\_\_\_

Answer 34

vectored \*it can be aerosolized

Question 35

Coxiella Burnetii has been bioweaponized and only needs ____ organism to infect host

Answer 35

one

Question 36

Coxiella Burnettii caueses ___ fever, and is reportable!

Answer 36

Q- fever

Question 37

Coxiella Burnettii is associted with ____ in sheep and goats

Answer 37

abortion

Question 38

Ehrlichiae lives in what kind of cells?

Answer 38

macrophages \*white blood cells

Question 39

Ehrlichia canis is the causative agent of what disease?

Answer 39

Canine Monocytic ehrlichiosis

Question 40

Ehrlichia canis is transmitted by what species of tick?

Answer 40

Rhipicephalus Sanguineus- Brown dog tick

Question 41

Ehrlichia ewingii is found in _____ cells and is transmitted by what species of tick?

Answer 41

neutrophils Amblyoma americanum- (lone star tick)

Question 42

What is the causative agent of African heartwater?

Answer 42

Ehrlichia ruminantium \*reportable disease but not in the US

Question 43

African heartwater is transmitted by what tick?

Answer 43

Amblyomma

Question 44

African heartwater likes to dissemintate to what part of the body?

Answer 44

brain \*neurological signs

Question 45

Major pathological finding in African Heartwater is \_\_\_\_

Answer 45

pericardial effusion \*lots of water around the heart in necropsy

Question 46

\_\_\_\_ serve as vectors for Neorickettsia

Answer 46

flukes \*nematodes

Question 47

What disease does Neorickettsia helminthoeca cause?

Answer 47

Salmon poisoning disease

Question 48

Neorickettsia likes to go into the ____ tissue and causes what clinical sign?

Answer 48

lymph causes Hemorrhagic DIARRHEA

Question 49

What is the only obligatory helminth borne pathogenic bacterium and what is the helminth?

Answer 49

Neorickettsia helminthoeca \*use Nanophyetus salmincola fluke

Question 50

How do dogs get Neorickettsia helminthoeca?

Answer 50

Fluke inside the fish and the dog eats the fish

Question 51

What is the causative agent of Potomac horse fever?

Answer 51

Neorickettsia Risticii

Question 52

What is the main clinical sign of Potomac horse fever?

Answer 52

Diarrhea!!