Other Bacteria

Question 1

Mycobacterium

acid fast (stain- soak bacteria in acid so stain will stick)

Answer 1

M. avium (MAC)

M. tuberculosis subsp. bovis

in environment, multi-systemic granulomatous, inhaled or cutaneous (leprosy)

Multi-drug resistance!

tuberculosis, leprosy
Cow: ileitis (Johne’s disease); cull

illegal to treat; chemotherapy, complete surgical excision, pasteurize colostrum or milk fed to calves

Question 2

Nocardia asteroides

Answer 2

acid fast
all animals: draining tracts, abscesses, effusions

soil dwelling, inhalation from dust or soil in wound, rarely passed animal to animal

drainage, excision, flush, quarantine, abx

canine- systemic infections
bovine mastitis

Question 3

Mycoplasma

Answer 3

No toxins
host specific
acute, chronic, asymptomatic
mucosal/serosal trophic
conjunctivitis, upper respiratory, mastitis, arthritis, gential tract, otitis
- no cell wall = no penicillin or cephalosporin txt
- intraRBC

Question 4

Anaplasma

Answer 4

Rickettsiales
intraRBC, intraendothelial cells, Both tick borne

A. marginale- CATTLE anemia, fever, anorexia, decreased milk production, abortion, weakness

A. phagocytophilum- inside neutrophils
Host- white footed mouse
Fever, coughing, fever, lethargy, lyme-like lameness, thrombocytopenia

Question 5

Ehrlichia canis

Answer 5

Rickettsiales
Intracellular monocytes and lymphcytes
tick-borne
thrombocytopenia, weakness, fever

Question 6

Neorickettsia risticii

Answer 6

Rickettsiales
Potomac horse fever
Equine monocytic ehrlichiosis (EME)
Wet environment- flukes
anorexia, fever, diarrhea, edema

Question 7

Chlamydiae

Answer 7

obligate intracellular gram-negative bacteria

energy parasites- need host ATP

elementary bodies- inactive, infectious, survive outside host
reticulate bodies- active, replicate, inclusions

Question 8

Chlamydophila psittaci

Answer 8

Birds- anorexia, fever, yellow-green droppings, hepatitis, splenomegaly

Zoonotic, reportable

Question 9

Chlamydophila felis

Answer 9

conjunctivitis (acute, chronic, recurrent), rhinitis, rarely pneumonia in cats

Zoonotic

VACCINE- can lessen severity of signs

Question 10

Chlamydophila abortus

Answer 10

ruminants, swine

Sheep- late pregnancy abortion

Question 11

Chlamydophila pecorum

Answer 11

more host range

enteritis, peritonitis, encephalitis