Viral & Bacterial Pathogens of the Haemolymph System Flashcards
Hemolytic anemia is the…
most common infectious anemia
Hemorrhagic anemia may be caused by…
blood-sucking parasites
Decreased production of RBC causing anemia is usually due to
a chronic infection
What are the 4 main causes of hemolytic anemia in cattle?
- Babesiosis
- Bacillary hemoglobinuria
- Leptospirosis
- Anaplasmosis
Inadequate production of RBC causing anemia in cattle may be due to…
Chronic BVDV
Johne’s Dz
Chronic infections like enzootic bovine leukosis
What common pathogen causes anemia in sheep?
Mycoplasma ovis
What diseases cause anemia in pigs?
- Leptospirosis
- Mycoplasma suis
What diseases cause anemia in horses? Are they bacterial, viral, or both?
- EIA (viral)
- Equine ehrlichiosis (bacterial)
What organisms cause anemia in dogs?
- Mycoplasma hemocanis
- Ehrlichia canis
What diseases cause anemia in felines?
- FIA
- FeLV
- FIV
What pathogens cause anemia in poultry?
- Chick Anemia Virus
- Aegyptianella pullorus
How do you diagnose infectious causes of anemia?
- find agent by PCR or immunofluorescence
How do you control infectious causes of anemia?
- Vx for some
- Txt for some
What organisms cause FIA?
- Mycoplasma hemofelis
- Possible (M. hemominutum, M. turicensis)
How is FIA transmitted?
- Biting arthropods
- young toms biting, fighting
- intrauterine/colostrum
- blood transfusion
What clinical signs might you see in acute FIA?
fever, jaundice, anemia, splenomegaly
What clinical signs might you see in chronic FIA?
weakness, emaciation, anemia
Concurrent infections of what diseases may occur w/ FIA?
FeLV or FIV infections
FIA cats are considered…. after they recover.
Long-term carriers
How would you diagnose FIA?
- serial blood smears (insensitive)
- PCR
- Hematology (regen. anemia)
How would you control FIA?
- choose blood donors carefully
- treat w/ antibiotics