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A. Small Animal Medicine and Surgery > Tick-Borne Diseases > Flashcards

Tick-Borne Diseases Flashcards

1
Q

what are the Bartonellosis species?

A

Bartonella henselae
B. clarridgeiae
B. vinsonii subsp berkhoffii

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2
Q

what is Bartonellosis known to cause in dogs?

A

bacterial endocarditis

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3
Q

what causes rocky mountain spotted fever?

A

Rickettsia rickettsii

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4
Q

when should you consider rocky mountain spotted fever?

A

endemic area
seasonal occurrence: spring and summer
fever
clinical signs

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5
Q

how can rocky mountain spotted fever be treated?

A

doxycycline
enrofloxacin

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6
Q

what are ehrlichiosis/anaplasmosis?

A

rickettsial parasites that form intracytoplasmic inclusions called morulae

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7
Q

what does positive serology of ehrlichiosis/anaplasmosis indicate?

A

exposure, not infection

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8
Q

what can you use to treat ehrlichiosis/anaplasmosis?

A

doxycycline

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9
Q

what is the vector of borreliosis/lyme disease?

A

Ixodes tick

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10
Q

what are the clinical signs of borreliosis?

A

fever
lethargy
lameness/swollen joints

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11
Q

how can you diagnose borreliosis?

A

clinical signs, serology, and response to therapy

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12
Q

when is a response to treatment of borreliosis seen?

A

within 48 hours

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13
Q

what determines the incidence of infection of tick-borne diseases?

A

geography of tick vector
lyme nationwide
rocky mountain spotted fever and Ehrlichia canis more common in southern states

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14
Q

what is disease from Bartonellosis like in dogs?

A

bacterial endocarditis
obscure, rarely diagnosed disease for any other syndrome

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15
Q

what is Bartonellosis like in cats?

A

symbiotic: many have it, no disease
maybe causes uveitis, stomatitis, chronic rhinitis

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16
Q

what is treatment of Bartonellosis like?

A

long term
in cats often ineffective at microbiologic cure
only recommended if have clinical symptoms

17
Q

what should you do about feline Bartonellosis?

A

do not test
do not treat
control fleas

18
Q

where is rocky mountain spotted fever most common?

A

southeastern US

19
Q

how does rocky mountain spotted fever cause inflammation/vasculitis?

A

replicates in endothelial cells

20
Q

what are the clinical signs of rocky mountain spotted fever in a dog?

A

fever
anorexia
CNS signs
pulmonary disease
integument changes
ocular changes

21
Q

what can be seen with laboratory testing with rocky mountain spotted fever?

A

thrombocytopenia: mild to severe

22
Q

how can you confirm diagnosis of rocky mountain spotted fever?

A

serologic testing: rising antibody titer
low positive results in MA

23
Q

what is the prognosis of rocky mountain spotted fever?

A

rapid response <24 hrs
guarded if severe vascular damage

24
Q

how are species of Ehrlichiosis/Anaplasmosis divided?

A

by host cell they infect: monocytic, granulocytic, thrombocytic

25
Q

which Ehrlichiosis/Anaplasmosis species are monocytic?

A

Ehrlichia canis
E. chaffeensis

26
Q

which Ehrlichiosis/Anaplasmosis species are granulocytic?

A

Anaplasma phagocytophilum
Ehrlichia eqingii

27
Q

does Anaplasma phagocytophilum or Ehrlichia canis cause both acute or chronic disease?

A

Ehrlichia canis
A. phagocytophilum only acute disease

28
Q

when should you consider Ehrlichiosis/Anaplasmosis?

A

polyarthritis, especially if thrombocytopenic
thrombocytopenia
non-descript fever
monoclonal gammopathy
lymphocytosis
pancytopenia

29
Q

how can you diagnose Ehrlichiosis/Anaplasmosis?

A

morulae may be observed in peripheral blood or synovial fluid
usually suggested by clinical signs and thrombocytopenia
serology to confirm if desired: rising titer
response to therapy supports, if no response excludes

30
Q

which forms of Ehrlichiosis/Anaplasmosis are difficult to cure?

A

chronic disease of monocytic forms

31
Q

what is feline Ehrlichiosis/Anaplasmosis like?

A

morulae in peripheral blood
fever, anorexia, polyarthropathy, thrombocytopenia, neutropenia
responds to doxycycline

32
Q

what causes lyme?

A

Borrelia burgdorferi

33
Q

what is seen in laboratory testing with Borreliosis?

A

no specific
synovial fluid neutrophilic inflammation

34
Q

what does a positive serology of Borreliosis indicate?

A

exposure, not active disease

35
Q

how can you treat Borreliosis?

A

doxycycline
penicillins

A. Small Animal Medicine and Surgery (71 decks)

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