Point to Rmever

Question 1

Mycobacterium

Answer 1

Acid fast
(TB/leprosy/ileitis/JOhnes dz)
Comparative cervical test

Chronic progressive dz
Asymptomatic/granulomatus dz
Enteritis

Question 2

Nocardia

Answer 2

Acid fast
Soil saprophyte
Canine systemic infection
Bovine mastitis

Trimeth-sulfa/tetracy/macrolides/penicillins
Abcess/effusion

Question 3

Mycoplasma

Answer 3

Mollicutes
Host specificity 
Acute/chronic/asymptomatic 
Primarily mucosal/serosal trophic
Conjunctivitis, resp(pleuropneumonia and air sacculitis), mastitis, arthritis, genital tract
Bursitis serositis 
anemia 
No cell wall = no beta lactam Tx (i.e. No penicillin/cephalosporins)

Question 4

Rickettsia
  Anaplasma 
    Marginale
    Phagocytophilium
    Platys

Answer 4

Obligate intercellular Vector-borne pathogen 
Often life long
Tx oxytetracycline/doxycycline
Anticipate immune suppression/2'in
Fever 

Anaplasmosis
Marginale: RBC ruminants = anemia
Phagocytophilium: neutrophils= neutropenia via ixodes tick; polyarthritis
Platys: platelets= thrombocytopenia via R sanguines

Question 5

Rickettsiales
  Ehrlichia
     Canis
     Chaffeensis
     Ewingii

Answer 5

Obligate intercellular Vector-borne pathogen
Often life long
Tx oxytetracycline/doxycycline
Erlichiosos
Anticipate immune suppression/2’infection

Ehrlichia
Canis:monocytes via brown dog tick
dxn via thrombocytopenia nonregen anemia; polyarthritis
Chaffeensis:monocytes via lone star tick… indistinguishable
Ewingii: granulocytic via lone star tick
Thrombocytopenia

Question 6

Rickettsiales
Neorickettsia
Risticii

Answer 6

Obligate intercellular Vector-borne pathogen
Often life long
Tx oxytetracycline/doxycycline
Anticipate immune suppression/2’infections

Potomac horse fever
Fluke/snail

Question 7

Dermatophytoses
Microsporum
Trichophyton

Anthrophillic
Zoophilic
Geophillic

Answer 7

Molds
keratin dep= epithelium

Anthrophillic=humans
Zoophilic= animals + humans
Geophillic = soil ass

Microsporum: large rough thick walled macroconidia
Microsporum canis** = most common of domestic animals 
 Microsporum Gallinae= avian

 Trichophyton: smooth thin wall cylindrical (small#) many microconidia
 Trichophyton mentagrophytes: **very broad host
 Trichophyton equinum= horses
 Trichophyton verrucosum= cattle (repro/canidia spread along hypae)

Question 8

Dermatomycosis

Malassezia

Answer 8

K

Question 9

Subcutaneous mycosis

Sporothrix

Answer 9

K