Formerly known as Haemobartonella felis.
Blood parasite responsible for feline infectious anemia.
, dark blue rods or rings on surface of RBC
severe hemolytic anemia
regnerative unless with FeLV
chains of coccoid organisms on the surface of canine erythrocytes; may cause hemolytic anemia in immunocompromised or splenectomized dogs; low-level infection is often incidental/secondary
Appearance- darkly staining coccoid bodies at margin of RBC's (may be hard to differentiate from howell-Jolly Bodies)
Vectors- Ticks & Biting Flies.
Treatment- Tetracyclines, external parasite prevention.
Invades the platelets and causes thrombocytopenia.
Vector- Ticks (requires a prolonged attachment of 24 hrs or more)
Joint pain, swelling, and lameness indicates infection. Other symptoms are "flu like". ZOONOTIC
Babesia spp. (Canines)
Babesia canis and Babesia gibsoni.
Parasites are typically pear-shaped and often occur in pairs.
Most common in racing grey hounds.
Fatal (w/in days) tick born disease in cats, found in rbc, lymphocyte, macrophages, and tissues.
Safety pin shape
Rare; however no treatment
Natural host is the Bobcat
Ehrlichia spp. (Canines)
E. canis & E. ewingii
Vector- Tick. It is a bacteria.
Invades monocytes & neutrophils.
Equine Potomac Horse Fever
Intermediate Hosts- Aquatic Insects.
Can cause colic or laminitis.
L1 ingested by mosquito, devlp. to L3 takes 2 wks, injected into dog, molt to L5 takes 60-70d, worm migration takes 3 months and ppp is 6 months.
Does not have purposeful movement
Also causes microfilariae in blood. SQ parasite in dogs.
Has hooked tail (Modified knotts test)
Canine Distemper Virus Inclusions
Inclusions on RBC's and WBC's/
Not a blood parasite.