Tick-Borne Diseases

Question 1

what are the Bartonellosis species?

Answer 1

Bartonella henselae
B. clarridgeiae
B. vinsonii subsp berkhoffii

Question 2

what is Bartonellosis known to cause in dogs?

Answer 2

bacterial endocarditis

Question 3

what causes rocky mountain spotted fever?

Answer 3

Rickettsia rickettsii

Question 4

when should you consider rocky mountain spotted fever?

Answer 4

endemic area
seasonal occurrence: spring and summer
fever
clinical signs

Question 5

how can rocky mountain spotted fever be treated?

Answer 5

doxycycline
enrofloxacin

Question 6

what are ehrlichiosis/anaplasmosis?

Answer 6

rickettsial parasites that form intracytoplasmic inclusions called morulae

Question 7

what does positive serology of ehrlichiosis/anaplasmosis indicate?

Answer 7

exposure, not infection

Question 8

what can you use to treat ehrlichiosis/anaplasmosis?

Answer 8

doxycycline

Question 9

what is the vector of borreliosis/lyme disease?

Answer 9

Ixodes tick

Question 10

what are the clinical signs of borreliosis?

Answer 10

fever
lethargy
lameness/swollen joints

Question 11

how can you diagnose borreliosis?

Answer 11

clinical signs, serology, and response to therapy

Question 12

when is a response to treatment of borreliosis seen?

Answer 12

within 48 hours

Question 13

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

Answer 13

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

Question 14

what is disease from Bartonellosis like in dogs?

Answer 14

bacterial endocarditis
obscure, rarely diagnosed disease for any other syndrome

Question 15

what is Bartonellosis like in cats?

Answer 15

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

Question 16

what is treatment of Bartonellosis like?

Answer 16

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

Question 17

what should you do about feline Bartonellosis?

Answer 17

do not test
do not treat
control fleas

Question 18

where is rocky mountain spotted fever most common?

Answer 18

southeastern US

Question 19

how does rocky mountain spotted fever cause inflammation/vasculitis?

Answer 19

replicates in endothelial cells

Question 20

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

Answer 20

fever
anorexia
CNS signs
pulmonary disease
integument changes
ocular changes

Question 21

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

Answer 21

thrombocytopenia: mild to severe

Question 22

how can you confirm diagnosis of rocky mountain spotted fever?

Answer 22

serologic testing: rising antibody titer
low positive results in MA

Question 23

what is the prognosis of rocky mountain spotted fever?

Answer 23

rapid response <24 hrs
guarded if severe vascular damage

Question 24

how are species of Ehrlichiosis/Anaplasmosis divided?

Answer 24

by host cell they infect: monocytic, granulocytic, thrombocytic

Question 25

which Ehrlichiosis/Anaplasmosis species are monocytic?

Answer 25

Ehrlichia canis E. chaffeensis

Question 26

which Ehrlichiosis/Anaplasmosis species are granulocytic?

Answer 26

Anaplasma phagocytophilum Ehrlichia eqingii

Question 27

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

Answer 27

Ehrlichia canis A. phagocytophilum only acute disease

Question 28

when should you consider Ehrlichiosis/Anaplasmosis?

Answer 28

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

Question 29

how can you diagnose Ehrlichiosis/Anaplasmosis?

Answer 29

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

Question 30

which forms of Ehrlichiosis/Anaplasmosis are difficult to cure?

Answer 30

chronic disease of monocytic forms

Question 31

what is feline Ehrlichiosis/Anaplasmosis like?

Answer 31

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

Question 32

what causes lyme?

Answer 32

Borrelia burgdorferi

Question 33

what is seen in laboratory testing with Borreliosis?

Answer 33

no specific synovial fluid neutrophilic inflammation

Question 34

what does a positive serology of Borreliosis indicate?

Answer 34

exposure, not active disease

Question 35

how can you treat Borreliosis?

Answer 35

doxycycline penicillins