Tickborne Dz/Blood Parasites

Question 1

ehrlicia canis is transmited bu what tick?

Answer 1

brown dog tick, Rhipicephalus sanguineus

Question 2

ricketsia ricksetssi casues what disease and is transmitted by what?

Answer 2

rocky mountain spotted fever, transmitted by the brown dog tick Rhipicephalus sanguineus

Question 3

E chaffeensis and E ewingii are transmitted by

Answer 3

Amblyomma americanum, the lone star tick

Question 4

A phagocytophilum is transmitted by

Answer 4

Ixodes species of ticks

Question 5

which tick borne disease is this? this is a blood smear from a dog

Answer 5

ehrlicia canis (infects lymphocytes and monocytes)

Question 6

Ehrlichia ewingii infects what kind of cells and causes what disease

Answer 6

neutrophils, sometimes eosiniophils

causes polyarthritis in dogs

Question 7

Anaplasma phagocytophilum infects which animals

Answer 7

horses, dogs, cats, humans, camelids

Question 8

what pathogen is this? this is from a horse

Answer 8

Anaplasma phagocytophilum (infects neutrophils and eosinophils)

Question 9

Anaplasma platyus in dogs causes

Answer 9

cyclic thrombocytopenia (infects platelets)

Question 10

what do you use to treat ehrliciosis?

Answer 10

doxycycline

Question 11

babesiosis is transmitted by

Answer 11

ixodid ticks

Question 12

babesiosois affects which cells

Answer 12

erythocytes

Question 13

what is the disease caused by babesia?

Answer 13

hemolysis, anemia, hemoglobinuria, icterus, hypoxemia

Question 14

what is the treatment for babesiosis?

Answer 14

imidocarb

azitrhomycin (sometimes(

Question 16

this is a blood smear from a dog that is icteric and anemic. what is it

Answer 16

babesiosis

Question 17

theileria is a disease affecting cattle in africa and asia. how is it different than babesiosis?

Answer 17

it infects RBCS and WBCs and the anemia is less severe

Question 18

cytauxzoonosis is similar to theileria. what are the 2 main vectors and what is the natural host?

Answer 18

Amblyomma americanum (lone star) and dermacentor variabilis (american dog tick)

natural host is the bobcat

Question 19

cytauxzoon felis infects which cells

Answer 19

RBCs

Question 20

what is the best way to diagnose cytauxzoon felis?

Answer 20

it can be very hard to see on blood smear, so can do PCR instead. NOTE it looks EXACTLY like babesia and theileria species that also infect RBCs.

Question 21

how is cytauxzoon felis treated

Answer 21

it can be fatal, but can do azithromycin + atovaquone