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Flashcards in Rickettsia Deck (52):
1

True/False: Rickettsia live outside cells

FALSE

*obligate intracellular 

2

Ricketssia is mainly transmitted via ____

arthropods

3

What cells does the genus Anaplasma like to live in?

myeloid cells

neutrophils

erythrocytes 

4

What are some pathological signs of Anaplasma?

anemia

thrombocytopenia

leukopenia 

5

What species of anaplasma is the big one in livestock?

Anaplasma marginale 

*bovine anaplasmosis 

6

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

Anaplasma platys

*lives in platelets

7

What species of Anaplasma affects dogs, horses and humans?

Anaplasma phagocytophilum 

8

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

Reservoirs 

9

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

wild deer 

10

True/False: Anaplasma marginale is a reportable disease

True!!

11

What kind of ticks transmit Anaplasma marginale?

HARD TICKS

*boophilus 

12

severe ____ is caused by bovine anasplasmosis 

anemia 

13

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

undulating febrile disease 

14

Bovine anaplasmosis causes huge destruction to ____

erythrocytes 

15

Where is Bovine Anaplasmosis found in erythrocytes?

near the periphery 

A image thumb
16

What is the main treatment for Bovine Anaplasmosis?

Vaccination and VECTOR CONTROL 

17

Most Rickettsia species are susceptible to what antibiotic?

Tetracylines 

18

What cells do Anaplasma Phagocytophilum live in?

neutrophils!!!!

*granulocytes 

19

Anaplasma phagocytophilum causes ___ borne fever 

tick 

20

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

Borellia 

21

What species of tick transmits Anaplasma Phagocytophilum?

Ixodes scapularis or pacificus

22

Clinical signs of Anaplasma phygocytophilum

lethargic

not eating

leukopenia 

23

Anaplasma Platys is found in what cells?

Platelets 

24

What does Anaplasma Platys cause in dogs?

Infectious canine cyclic thrombocytopenia 

25

Anaplasma Platys is common co-infected with ____ 

Ehrlichia 

26

What ticks transmit Anaplasma Platys?

Rhipicephalus 

Dermacentor 

27

Genus Rickettsiae lives in ____ cells 

endothelial 

28

What disease does Rickettsia Rickettsii cause in dogs?

Rocky mountain spotted fever 

29

What ticks transmit Rickettsia Rickettsii?

Dermacentor andersoni- Wood tick

Dermacentor variablis- American dog tick 

30

What is the main pathology of Rickettsia Rickettsii?

VASCULITIS!!

31

Severe ____ in extermitis in dogs occur with Ricketssia Rickettsii

necrosis 

32

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

Ehrlichiosis 

33

Best control for Rickettsia Rickettsii?

Tick control!

34

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

vectored 

*it can be aerosolized 

35

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

one

36

Coxiella Burnettii caueses ___ fever, and is reportable! 

Q- fever 

37

Coxiella Burnettii is associted with ____ in sheep and goats

abortion 

38

Ehrlichiae lives in what kind of cells?

macrophages 

*white blood cells 

39

Ehrlichia canis is the causative agent of what disease?

Canine Monocytic ehrlichiosis 

40

Ehrlichia canis is transmitted by what species of tick?

Rhipicephalus Sanguineus- Brown dog tick 

41

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

neutrophils 

Amblyoma americanum- (lone star tick)

42

What is the causative agent of African heartwater?

Ehrlichia ruminantium

*reportable disease but not in the US 

43

African heartwater is transmitted by what tick?

Amblyomma 

44

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

brain 

*neurological signs 

45

Major pathological finding in African Heartwater is ____

pericardial effusion

*lots of water around the heart in necropsy 

46

____ serve as vectors for Neorickettsia 

flukes

*nematodes 

47

What disease does Neorickettsia helminthoeca cause?

Salmon poisoning disease 

48

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

lymph 

causes Hemorrhagic DIARRHEA

49

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

Neorickettsia helminthoeca

*use Nanophyetus salmincola fluke 

50

How do dogs get Neorickettsia helminthoeca?

Fluke inside the fish and the dog eats the fish

51

What is the causative agent of Potomac horse fever?

Neorickettsia Risticii 

52

What is the main clinical sign of Potomac horse fever?

Diarrhea!!