Bacteriology Flashcards
species that affected by Glanders
horses
what is malassezia diagnosed
yeast on cytology
bacteria that is zoonotic and found in wild rabbits
Francisella tularensis
bacteria causes mastitis and test positive on cAMP test
Streptococcus agalactiae
two things
bacteria have to help protect themselves
Endospores &
LPS layer
what is the color of Staphylococcus stained on gram stain?
purple (gram +ve)
which bacteria stain red with acid-fast stain
Mycobacterium spp.
bacteria are fastidious anaerobes that produce endospores
Clostridium spp.
What is the cause of Gram (–) enterotoxemia
O-polysaccharides – (LPS) – Endotoxins
found within the bacterial cell membrane, elicits strong immune response from bacteria
circulating in the blood à CS: Septic shock
species can humans get MRSA from
Dog and horse
species most commonly do you see resistance for MRSA
Cattle and goat
What is the term for the transfer of genetic material between bacteria
Conjugation
Most common bacterial pathogen on skin of dogs
Staphylococcus pseudointermedius
Collecting sample from clitoral sinus is to diagnose what in horses
Taylorella equigenitalis
(CEM)
What vitamin is decreased when there is overgrowth of bacteria in the GIT
B12
What is the causative agent of RMSF (Rocky Mountain spotted fever)
Rickettsia rickettsi
Why does Listeriosis have high morbidity and high mortality
Endotoxins thrives in all ages of animals and can survive wide range of temps/pH levels
What leptospirosis spp. is most virulent to humans
Leptospira interrogans – Serovar:
Icterohemorrhagica
What spp. transmits and possess the greatest risk for zoonosis of E. coli O157:H7?
Cattle
What is the most common vaccine that will cause a reaction
Leptospira
What are the clinical signs of salmonellosis
Mucousy/fibrinous bloody diarrhea and
leukopenia
How is Salmonella spp. differentiated from Proteus spp.?
Salmonella spp. is Urease (–) and
Proteus is Urease (+)
How is Staphylococcus sp. differentiated from Streptococcus sp.?
Catalase test: Staph (+) vs Strep (–)
What are the characteristics of Listeria?
Gram (+) Rods, Catalase (+), Oxidase (–)
What bacterial infection causes hematuria or “port-wine colored” urine?
Clostridium haemolyticum
What agar is used for Gram (–) and lactose fermenting bacteria
MacConkey
What agar do you use for Haemophilus parasuis
Chocolate agar
A positive dermatophyte test on dermatophyte medium turns agar from what color to what color?
Yellow to red
What bacteria are you killing during pasteurization
Coxiella burnetti
How is Brucella sp. detected in raw milk?
Serum agglutination
What can be used to treat Staphylococcus sp. infections?
Penicillin G
What is the treatment for Ehrlichia sp. and other tick-borne disease such as Anaplasma sp.?
Doxycycline
What is the term for a disease outbreak of multiple animals being affected at one time?
Epizootic (epidemic)
What is the most likely cause of coliforms found in milk bulk tank?
Lack of equipment washing with subsequent environmental contamination
What is the most common cause of foodborne shigellosis and viral hepatitis?
Improper handling – Handwashing
main cause of mastitis in cattle and small ruminants
Staphylococcus aureus
main cause of diarrhea in 2-3 days old cattle and sheep
E. coli k99
bacteria that causes lumpy jaw
actinomyces bovis
Shaker foal syndrome
Clostridium botulinum
(Botulism toxicoinfection)
neurotoxin
