Bacteriology 2

Question 1

Rickettsia rickettsii

Answer 1

name: Rocky Mountain Spotted Fever (RMSF)
host: dogs and humans
reservoir: small wild mammals
vector: Dermacentor/TICKS
target: endothelial cells
signs: high fever and thrombocytopenia
diagnose: PCR, titers, culture
treat: doxy and palliative
intracellular
ZOONOTIC (not dogs to humans)

Question 2

ehrlichia canis

Answer 2

similar to RMSF
name: canine monocytic ehrlichiosis
species: dogs (cats)
vector: rhipacephalus, dermacentor/TICKS
signs: mucosal bleeding, CNS dz, synovitis
target: monocytes-wbc
diganosis:cbc, serology (snap4dx)
treat: tetracyline
intracellular

Question 3

ehrlichia ruminatium

Answer 3

name: heartwater
exotic to US reportable
host: ruminant
vector: amblyome/TICKS
target: endothelium and macrophage
signs: edema, respiratory and neurologic
diagnose: blood smear, pcr necropsy
treat: tetracyline
intracelluar

Question 4

Anaplasma phagocytophilum

Answer 4

name: canine granulocytic anaplasmosis AND
equine granulocytic anaplasmosis
species: horse, dog, and human
vector: ixodes/TICKS
target: neutrophils and eosinophils
signs: leukopenia, artheritis/phlebitis, thrombocytopenia, limb edema
diagnose: buffy coat/morulae, inclusion body, PCR
treat: palliative, doxy, minocycline
intracellular
ZOONOTIC-not dog to human

Question 5

anaplasma marginale

Answer 5

name: bovine anaplasmosis
host: cattle and small ruminants(indicus and young-resistant) (tarus and old-susceptible)
vector: dermacentor/TICKS
target: RBC
signs: fever, hemolytic anemia, abortion
diagnose: blood smear, PCR, necropsy
treatment: tetracycline
prevention: no vax, quarantine and remove infected animal
intracelluar

Question 6

Chlamydia pscitticii

Answer 6

name: avian chlamydiosis
species: birds
transmission: carrier animals, inhalation, ingestion, repiratory-viable in the environment
signs: nasal and occular dischare, sneezing, conjunctivitis, GIT-diarrhea
diagnose: cytology/histo-choana,serology- antibody,antigen and PCR-inclusion body
treatment:doxy or tetra
target: epithelial
prevention: managment, no vax
intracellular
reportable and ZOONOTIC (flu like symptoms)

Question 7

mycoplasma haemofelis

Answer 7

name: feline hemotropic mycoplasmosis
species: cats
trans: ticks/fleas and transfusions
Target: RBC
signs: extravascular hemolysis
diagnosis: blood smear, bacteria on RBC, agglutination, ghost cells and spherocytes and PCR
Treatment: doxycycline and tetracycline and suppurative care
epicelluar

Question 8

mycoplasma bovis

Answer 8

name: bovine mycoplasmosis
species: cattle
transmission: direct contact/inhalation
target: epithelium (Respiratory and urogential
signs: mastitis, pneumonia (BRDC), polyarthrisitis, otitis media
epicelluar
persistent in the environment

Question 9

coxiella burnetti

Answer 9

Q fever
inhalation, direct contact, ticks
macrophages and trophoblasts
intracelluar

Question 10

neorickettsia helminthoeca

Answer 10

name: salmon posioning diease
vector: fluke (N salmincola)
target: histocytes
intracelluar
species:K9
signs: vomiting, diarrhea, lymphadenopathy, inappetence, enteropathym edema, inflammation,hemorrhage
treat: tetracylines or praziquantel for flukes
diagnose:fecal, FNA of LN, cytology, PCR

Question 11

neorickettsia
risticii

Answer 11

name: potomac horse fever
vector: fluke/dragonfly
target cells: histocytes
intracelluar
species: horses
signs: non specific colic, loose stool, laminitis secondary to endotoxemia and abortion
dianose:PCR, whole blood, feces
treat: oxytetracycline
prevent:vax